That’s what we’re here to unpack together.

The Trinity can feel overwhelming at first, but it’s also a concept that reveals God’s beauty and complexity in ways we might not expect.

Let’s explore this doctrine step by step and uncover why the Trinity matters for your faith and relationship with God.

What Is the Trinity?

What Does “Trinity” Mean?

When we talk about the Trinity, we’re referring to one of the core beliefs of Christianity. At its most basic, the term Trinity (from Tri-Unity) means that God is one divine being who exists in three distinct persons—Father, Son, and Holy Spirit.

These aren’t three separate gods, nor are they just three different roles that God plays.

Instead, the Trinity reveals something unique about God’s nature.

Think of it this way: the Trinity shows us that God is both unified and relational in his divine nature. God isn’t lonely or solitary; he has existed forever in a perfect relationship within himself.

This connection between Father, Son, and Holy Spirit forms the foundation of Trinitarian theology, a way of understanding who God is and how he interacts with his creation.

It’s okay if this idea seems a bit mysterious. You’re not alone—many Christians wrestle with understanding the Trinity doctrine.

But here’s what’s beautiful about it: Trinitarian theology emphasizes that God’s complexity is beyond human understanding, yet it also reflects his desire for connection and love. And while we may not fully grasp every aspect of the Trinity, we can trust that it reveals deep truths about who God is.

God Is Trinity

Only One God in Three Persons

When we say God is Trinity, we’re affirming a profound truth about his nature. There is only one God, but he exists as three distinct persons. This doesn’t mean three gods (tritheism) sharing power or one God shape-shifting into different forms (modalism).

Instead, the Trinity emphasizes that these three divine persons are equally and fully God, while remaining perfectly united as one being.

You might wonder, how can something like this be possible?

While it’s a mystery, it’s also meaningful. God’s nature surpasses human understanding, yet he has revealed exactly what we need to know to grow in our faith.

Each person of the Trinity works together in perfect harmony, showing us God’s unity and his relationship-driven character.

The Father

The Father is the source of all creation. He is the person of Yahweh revealed in the Old Testament . He is the planner—the one who set the universe into motion and established his purposes for humanity.

When Jesus prayed, he addressed the Father, showing us a glimpse of their eternal relationship.

The Father’s role doesn’t make him “greater” than the Son or the Holy Spirit. Instead, it highlights his unique place within the Trinity.

The Son

Jesus Christ, the Son, is fully God and fully man. He entered our world in bodily form to reveal God to us in a personal way. Through his perfect life, sacrificial death, and bodily resurrection, he made salvation possible.

The Son’s relationship with the Father is one of love and obedience, reflecting how the Trinity operates in perfect unity. He is also spoken of as the eternal Word of God: “In the beginning was the Word, and the Word was with God, and the Word was God” (John 1:1).

Trinitarian theology teaches that the Son wasn’t created by the Father but has always existed. He is eternally begotten of the Father and there was never a time that the Son didn’t exist.

The Holy Spirit

The Holy Spirit completes the Trinity by working in us and through us. He is the presence of God in our lives, guiding, comforting, and empowering us.

Just as the Father sends the Son, the Father and the Son send the Holy Spirit to dwell in believers, highlighting this close connection.

Through the Spirit, we experience God’s love and truth in a deeply personal way.

Perfect Unity in Distinction

One of the most astounding aspects of the Trinity is how these three persons are distinct and individual but never divided. The Father, Son, and Holy Spirit share the same divine essence, meaning they are equally powerful, equally eternal, and equally God. Yet, each plays a unique role, whether it’s the Father’s planning, the Son’s sacrifice, or the Spirit’s guidance.

This perfect unity in distinction reminds us of God’s infinite depth and relational nature. It’s a model that can inspire us to value unity and strive for cooperation with our own loved ones.

The philosophical idea of the Trinity may be complex, but it also reveals how God’s infinite love and purpose bring everything together perfectly.

Why It Matters

Understanding that God is Trinity helps us see how deeply relational he is. The love shared within the Trinity is the same love he extends to you. It reminds us that God didn’t create humanity out of loneliness—he created us out of an overflow of his love. This truth anchors our faith and shapes how we interact with him and each other.

The Trinity isn’t just a theological idea; it’s a window into God’s heart that shows his desire for connection with us. Through it, we learn about his unity, his selflessness, and his invitation to share in the relationship he’s had for eternity.

How Is God 3 in 1?

Expecting the Infinite to Be Beyond Our Understanding

If we’re honest, the idea of the Trinity can be downright mind-bending. One God in three persons, both different and the same? It’s no wonder this concept is hard to wrap our heads around.

But here’s the thing—shouldn’t we expect that an infinite, transcendent God would be beyond our full human comprehension?

After all, we’re talking about the Creator of the universe. If human beings could completely explain God, wouldn’t that make him limited, just like us?

The mystery of the Trinity reminds us of God’s greatness: that he’s not confined by human comprehension. While it’s okay to wrestle with questions, it’s also important to approach this doctrine with humility, remembering some aspects of God will always remain a sacred mystery—and that’s a good thing.

It shows us God is far greater than we can imagine, and yet he invites us to know him personally.

Earthly Examples (and Their Limitations)

To help explain the Trinity, people have often turned to earthly analogies.

Maybe you’ve heard the Trinity compared to water, which exists as liquid, ice, and vapor. Or perhaps you’ve heard the analogy of an egg, which has a yolk, a white, and a shell. These examples aim to make the idea of “three in one” more approachable, but they all fall short in some way.

For example, water can only exist in one state at a time (ice, liquid, or vapor), which makes it more like switching roles (modalism) than the simultaneous reality we see in the Trinity. The egg analogy, on the other hand, divides God into “parts”(tritheism), which misses the truth that the Father, Son, and Holy Spirit are each fully God—not just pieces of the whole.

These analogies may be helpful starting points, but they’re not perfect representations as God’s complexity goes far beyond anything in our world.

The Beauty in the Mystery

Instead of trying to force the Trinity into a neat, human-made category, we can rest in the awe it inspires. The fact that God’s divine nature is beyond the limits of our understanding reflects his greatness. And even though we can’t fully explain how he is three in one, we can see the beauty in what Trinitarian theology reveals about him—his unity, his love, and his closeness to us.

Ultimately, it’s okay to acknowledge that the Trinity is a mystery.

What’s important is that this truth brings us closer to God and helps us understand him more deeply, even if our understanding will never be complete. It’s a humbling reminder that we’re finite beings, loved and pursued by an infinite God who is far greater than we can comprehend.

What Is the Purpose of the Trinity?

When we think about the Trinity, we might wonder: Why does God need to exist in this way? What is the purpose? The purpose of the Trinity is rooted in God’s nature and his relationship with us and to us in how we have been created.

It shows us that God is love at his very core with the 3-in-1 Godhead having always existed together in perfect unity and love. This eternal relationship isn’t just something God has—it’s who he is.

Because God is relational within himself, he didn’t create the world out of a need for company or connection. Instead, creation is an overflow of that love, an extension of his purpose to share it. The Trinity doctrine reminds us that God’s love isn’t static. From the Father’s plan to create and redeem, to the Son’s sacrificial love, to the Holy Spirit’s ongoing work in our lives, the Trinity works dynamically to bring us closer to God.

This relationship is reflected in us, and should sound familiar. Humanity also creates and shares out of love for a desire to connect with and understand others. And in some sense, we also have parts that make up our being: body and soul . However, unlike God, we often are not in perfect harmony.

The purpose of the Trinity is ultimately about relationship. Not just between the Godhead, but between God and us that invites us to experience the fullness of his love and to share it with others.

Why Is The Trinity Important?

Understanding the Trinity isn’t just an intellectual exercise—it shapes our view of God and our faith. Regarding our view of God, the Trinity explains how God can be both distant and near. The Father, who created and governs the universe, shows us God’s majesty. The Son, who came to earth as our Lord Jesus Christ, shows us his nearness. And the Holy Spirit, who dwells in believers, shows us his active presence today.

Regarding our faith, the Trinity reveals God’s heart. It shows us a God who didn’t just remain far off, but who came close and longs to draw near (James 4:8). The Son willingly entered our world, and the Spirit lives in us, making the love and power of God personal. Without the Trinity, Christianity wouldn’t have the same foundation of grace, love, and purpose that we depend on every single day.

Trinitarian theology reminds us that God isn’t a distant concept or a set of rules to follow. He’s the originator of a relationship to be experienced, a mystery to be embraced, and most of all, a God who loves us more deeply than we can imagine.

When Was the Trinity Revealed?

It’s in the New Testament where the Trinity is fully revealed. When Jesus was baptized, the Father spoke from heaven, the Spirit descended like a dove, and the Son stood in the water. This moment captures the Father, Son, and Holy Spirit together in action.The full revelation of the Trinity didn’t happen all at once. Instead, we see glimpses of God’s divine nature throughout the Bible that become clearer over time, particularly through the words of Jesus and the apostle Paul.

Jesus also taught about the Trinity throughout his ministry. He spoke of his relationship with the Father, calling himself one with God, and promised to send the Holy Spirit after his resurrection. The early church, through the guidance of the Spirit, recognized these truths and laid the foundation for the Trinity doctrine we hold today.

The timeline of the Trinity’s revelation reminds us that God’s plan unfolds perfectly. He shows himself to us progressively, culminating in the explicit revelation of the Son in the New Testament.

Who Is The Trinity?

Father

Who Is the Father?

When we think of the Trinity, the Father is often the first person who comes to mind. But who is he, really? The Father is the eternal Creator, the one who brought the universe into being with care and purpose. He’s not distant or detached, but deeply personal. Jesus revealed this when he taught his disciples to pray by calling God “Our Father,” emphasizing not just the Father’s authority but his loving relationship with humanity.

The Father is the source of all that exists, but he’s also much more than a Creator. He’s a protector, a sustainer, and a loving presence who longs for a relationship with you. Every time Scripture speaks of God’s deep love for humanity, it’s a reminder of the Father’s heart—a heart that desires to redeem his creation and to guide and nurture the redeemed.

What Is the Role of the Father in the Trinity?

In the Trinity, the Father holds a unique and foundational role. He is the initiator—the one who wills and plans everything. From creation to salvation, the Father sets his purpose into motion. This doesn’t mean he acts alone, though. The Son and the Holy Spirit work with him, each playing distinct but harmonious roles.

For example, in the plan of salvation, the Father sent the Son into the world (John 3:16). This act shows his deep love and desire to restore humanity from a fallen to a redeemed state. The Son carried out the mission by taking on human nature and dying for our sins, and the Holy Spirit goes out from the Father and the Son to apply this work in our lives. Throughout this process, the Father’s role is clear: he leads, he plans, and he invites us into a relationship with him.

The Father’s role also highlights his authority within the Trinity doctrine. While all three persons of the Trinity are fully and equally the same God, the Father initiates and the others respond in loving unity. This dynamic doesn’t diminish the Son or the Spirit but reflects the perfection between them. It gives us a picture of how God’s design is rooted in love, respect, and cooperation.

Son

Who Is the Son?

When we talk about the Son in the Trinity, we’re referring to Jesus Christ. He is God made flesh—the second person of the Trinity who stepped into our world to reveal God to us (John 1:14). The Son is eternal, meaning he has always existed, just like the Father and the Holy Spirit. But what makes the Son unique is his role as the Savior. He took on human form, lived among us, and showed us what God’s love looks like in action.

Jesus wasn’t just a great teacher or moral leader; he was and is fully God. When he walked on earth, he experienced life as we do—its joys, struggles, and even its suffering. Through his life, death, and resurrection, he made a way for us to be reconciled with God.

What Is the Role of the Son in the Trinity?

In the Trinity, the Son fulfills a vital role. He is the one who carries out the Father’s plan. For example, when the Father willed for sinful humans to be saved, the Son took on the mission to make it happen. This is seen most clearly in Jesus’s sacrifice on the cross. By dying for our sins and rising again, he bridged the gap between a holy God and a broken humanity.

The Son’s role also involves revealing the Father to us. Through his teachings and actions, Jesus made it clear what God is like—gracious, forgiving, and full of truth. He said, “Anyone who has seen me has seen the Father” (John 14:9), showing us that he perfectly reflects who God is.

But the Son’s role doesn’t end with his earthly mission. Even now, he continues to act in his role as the second member of the Trinity. The Bible teaches that he intercedes for us, advocating on our behalf before the Father (Hebrews 7:25). And one day, he will return to fully establish God’s kingdom (Revelation 11:15), carrying out the Father’s plan on Judgment Day.

Understanding the Son’s role helps us see God’s love in action—love that sacrifices, heals, and brings hope. Jesus invites us to trust him, not just as a part of the Trinity, but as the Savior who brings God’s real, personal love full circle.

Holy Spirit

Who Is the Holy Spirit?

The Holy Spirit is the third person of the Trinity, but don’t think of him as an afterthought or a lesser figure. He is fully God, just like the Father and the Son. The Holy Spirit is God’s presence with us here and now. When Jesus ascended into heaven, he promised his followers that the Holy Spirit would come to comfort, empower, and guide them into all truth, witnessing to them about Christ and his teachings (John 16:13).

The Holy Spirit isn’t a force or an abstract idea. He’s a person with a will and a vital role in God’s plan. He works in our lives to reveal God’s truth, draws us into deeper understanding, and guides us to live in a way that pleases God. Whenever you feel God’s peace, hear his voice in your heart, or experience his strength, that’s the Holy Spirit at work!

What Is the Role of the Holy Spirit in the Trinity?

In the Trinity, the Holy Spirit is the one who brings God’s power and presence into our lives. While the Father plans and the Son accomplishes, the Holy Spirit applies that work to us and through us. When Jesus died and rose again, it was the Holy Spirit who made it possible for us to experience the fullness of God’s grace, stirring our hearts to believe.

The Holy Spirit’s role includes teaching and guiding us into all truth. He helps us understand Scripture, convicts us of sin, and points us to Jesus’s words and actions. And he doesn’t stop there. He also equips us with spiritual gifts, encourages us when times are tough, and empowers us to share God’s love with others.

Another key role of the Holy Spirit is to dwell in us. When you become a believer in Christ, the Holy Spirit takes up residence in your heart. He’s not just “with” you; he’s “in” you. He’s deposited as a guarantee of our redemption at life’s end (Ephesians 1:13–14). This means you are never alone, and you have constant access to God’s wisdom, comfort, and strength.

The Holy Spirit completes the perfect unity of the Trinity. His presence in our lives is a reminder of how deeply God loves us and how committed he is to walking alongside us every step of the way.

And through the Spirit, we can grow in faith, experience God’s power, and live out the incredible purpose he has for us.

What Does the Bible Teach About The Trinity?

Is “Trinity” in the Bible?

You may have heard people say, “The word ‘Trinity’ isn’t even in the Bible,” and they’re right—it’s not. But that doesn’t mean the concept of the Trinity isn’t found in Scripture.

While the exact term “Trinity” (Latin: Trinitas) was introduced later by early church leaders like Tertullian (around 160–230 AD), the truth of God being three-in-one is rooted in the Bible and Christians use the word “Trinity” to describe this truth.

Think of it this way: many important ideas in Christianity, such as “inerrancy,” “omnipotent,” or even the word “Bible,” don’t appear directly in the text, but the principles behind them clearly do.

The same is true for the Trinity in the Bible. Scripture consistently reveals one God who exists as Father, Son, and Holy Spirit working together.

For example, the Bible teaches there is only one God (1 Timothy 2:5), yet it attributes divinity to the Father (2 Peter 1:17), the Son (Titus 2:13), and the Holy Spirit (1 Corinthians 2:10–11). These three are often mentioned together, like in the Great Commission from Jesus (Matthew 28:19).

If you’re curious about how the Trinity is revealed throughout Scripture, we go into more depth tracing how the early church came to understand and articulate this doctrine, grounding it in the Bible’s overall message.

Does the Bible Support The Trinity?

Where Did the Teaching of the Trinity Come From?

The teaching of the Trinity has its roots firmly planted in the Bible. While the concept took time for the early church to name and fully define, it wasn’t something they invented. Instead, it’s a doctrine derived from Scripture itself. Early Christians—many of them Jewish monotheists—had to reconcile what the Bible revealed about the one true God with their experiences of Jesus and the Holy Spirit.

The foundation of the Trinity in the Bible comes from passages that emphasize both the oneness of God and the distinct roles of the Father, Son, and Holy Spirit. For instance, 1 Timothy 2:5 confirms, “there is one God,” while verses like Matthew 3:16–17 show all three persons in action together at Jesus’s baptism. Over time, church leaders like Tertullian used terms like “Trinity” to describe this biblical reality and to defend it against misunderstandings.

The early church councils, such as the Council of Nicaea in AD 325, didn’t create the Trinity doctrine but clarified it based on Scripture. These councils confirmed what Christians already believed—that the Bible reveals one God in three persons, equal in divinity yet distinct in role and relationship.

Did Jesus Teach the Trinity?

Yes, Jesus’s teachings laid the foundation for our understanding of the Trinity. He may not have used the word “Trinity,” but his words and actions clearly pointed to this truth. For example, in John 10:30, Jesus said, “I and the Father are one,” affirming his divine identity and unity with the Father. At the same time, he frequently spoke of the Holy Spirit and promised his disciples that the Spirit would come to guide them after Jesus returned to the Father.

One of the clearest examples of Trinitarian language is in the Great Commission, where Jesus instructed his followers to “go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit.” This triadic formula highlights the presence and equality of the three persons of the Trinity.

Jesus’s life itself teaches us about the Trinity. During his ministry, we see the Father’s love, the Son’s sacrifice, and the Spirit’s power working together seamlessly. Through his teachings and miracles, Jesus invited us to understand that God is relational by nature, existing as Father, Son, and Holy Spirit.

When we explore the Bible, it’s clear that the Trinity isn’t an invented theological concept—it’s the way God has revealed himself in his fullness.

Where Does the Bible Teach About the Trinity?

The concept of the Trinity in the Bible—one God in three persons—unfolds across its pages. Though the word “Trinity” itself doesn’t appear, Scripture is rich with teachings that reveal God as Father, Son, and Holy Spirit.

The Old Testament

The Old Testament lays the foundation for understanding God’s oneness. Deuteronomy 6:4 famously says, “Hear, O Israel: The Lord our God, the Lord is one.” This declaration of God’s oneness is central to biblical faith. Yet, the triune nature of God is hinted at in the Old Testament. For example, in Genesis 1:26, God says, “Let us make mankind in our image, in our likeness.” The plural wording hints at a deeper meaning to God’s nature.

The New Testament: Paul

When we move to the New Testament, the picture of the Trinity becomes clearer. Paul’s writings often highlight this relationship. For example, in 2 Corinthians 13:14, Paul closes his letter with a blessing that beautifully references all three persons: “May the grace of the Lord Jesus Christ, and the love of God, and the fellowship of the Holy Spirit be with you all.”

Also, in Galatians 4:4–6, Paul shares how God the Father sent the Son to redeem us and then sent the Spirit into our hearts so we could cry out, “Abba, Father.” This passage reflects the cooperative work of the Father, Son, and Spirit in salvation and intimacy with God.

The New Testament: Peter

In 1 Peter 1:2, Peter opens his letter by addressing Christians as “chosen according to the foreknowledge of God the Father, through the sanctifying work of the Spirit, to be obedient to Jesus Christ and sprinkled with his blood.” Here we see all three persons of the Trinity at work. The Father chooses, the Spirit sanctifies, and the Son provides salvation through his sacrifice.

The New Testament: Jesus

Another vital passage is John 14–16, where Jesus speaks extensively of the Holy Spirit and his unity with the Father. In John 14:26, Jesus says, “the Advocate, the Holy Spirit (3rd person), whom the Father (1st person) will send in my name (2nd person), will teach you all things and will remind you of everything I have said to you.”

Through these passages, we see a God who is both one and three working together in perfect harmony. Understanding the Trinity helps us marvel at God’s complexity and love, even if its full mystery lies beyond our understanding. It’s not just a doctrine to grasp but a way to experience God’s presence and work in our lives.

Trinitarian Theology

History of the Trinity

The history of the Trinity stretches back to the earliest days of Christianity. While the word isn’t in the Bible, the early church fathers saw its foundation in Scripture and sought to coherently explain this profound mystery. The doctrine came into focus as Christian leaders wrestled with how to describe God’s existence, especially as they responded to heresies and misunderstandings about Jesus and the Holy Spirit.

One pivotal moment in this history was the Council of Nicaea in AD 325. Here, bishops from across the Christian world gathered to affirm that Jesus Christ is fully God, equal with the Father. Their findings laid the groundwork for what became known as the Nicene Creed, a declaration of faith that emphasized God’s triune nature.

Over time, through councils and teachings, the church further clarified the understanding of the Trinity. The Trinity wasn’t invented—it was discovered, defined, and defended as the biblical portrayal of God’s being.

The Trinitarian Doctrine

At its core, the Trinitarian doctrine teaches that there is one God who exists as three distinct persons. Each is fully and equally divine, yet they are not three gods but one. This concept sets Christianity apart from other religions and beliefs.

Trinitarian doctrine acknowledges that humans can’t fully comprehend God’s essence. It’s a mystery, but one deeply rooted in Scripture. The doctrine of the Trinity shows the Father as Creator, the Son as Redeemer, and the Spirit as Sanctifier, each working together in perfect harmony.

Trinitarian Godhead

The term “Godhead” refers to God’s divine nature and 3-in-1 essence. When we speak of the Trinitarian Godhead, we’re talking about the Father, Son, and Holy Spirit as equal in power, glory, and eternity. This term or title helps us see each person of the Trinity as fully God.

For example, the Father is often seen as the source or origin, the Son as the Word made flesh, and the Spirit as the active presence of God in the world. Together, the Trinitarian Godhead demonstrates how God is both unchanging and always active in creation.

Origin of the Trinity Doctrine

You might wonder, “How did the Trinity doctrine originate?” The doctrine emerged as early Christians studied Scripture and reflected on their experiences of God through Jesus and the Holy Spirit. While Jewish tradition firmly held that God is one, the coming of Jesus and the outpouring of the Holy Spirit revealed a richer, more complex understanding of his nature.

Leaders like Tertullian and Athanasius played crucial roles in explaining and defending the Trinity. They leaned on biblical passages like the Great Commission and the baptism of Jesus that highlighted God’s threefold personhood. Over centuries, this understanding was refined and affirmed, ensuring that it remained faithful to Scripture’s teachings.

The Catholic Holy Trinity

The concept of the Trinity holds a central place in all branches of Christianity: Roman Catholic, Orthodox, and Protestant. Each branch teaches that the Holy Trinity is the ultimate mystery of God, one that surpasses human understanding but is fully revealed through Christ.

Christian theology emphasizes the relationship between the three persons of the Trinity. For example, the Father eternally brings about or begets the Son, and the Holy Spirit eternally proceeds from both the Father and the Son—a relationship described as “procession” in church tradition. These ideas, while complex, aim to preserve the unity and equality of the three persons while acknowledging their distinct roles.

For Roman Catholics in particular, the Trinity is a living truth reflected in worship, prayer, and the sacraments. Every time a Catholic makes the sign of the cross or recites the Nicene Creed, they affirm this central teaching of their faith. All Christians see in the Trinity the fullness of God’s love and the invitation to share in his divine life.

Understanding the Trinity allows us to appreciate God’s intricate yet relational nature. It’s more than theology; it’s an invitation to know and experience the God who exists as perfect love and unity.

How to Explain the Trinity to a New Christian

Explaining the Trinity can feel challenging, but the beauty lies in its simplicity and mystery. The Trinity means that there’s one God who exists in three persons—Father, Son, and Holy Spirit. Think of it this way: God is one being, but he expresses himself in three individual ways, all equally God, all working together.

Think of a single triangle and its three sides. Oneness and threeness together. Similarly, the Father, Son, and Holy Spirit are distinct yet singular. The Father creates and leads, the Son redeems and saves, and the Spirit guides and empowers. Together, they show us who God is and how he loves us so deeply.

While it’s amazing to think about, it’s okay not to fully understand it. God’s divine nature is so much bigger than we can wrap our minds around, but that’s part of what makes him so wonderful!

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That we worship one God in trinity and the trinity in unity, neither blending their persons nor dividing their essence. For the person of the Father is a distinct person, the person of the Son is another, and that of the Holy Spirit still another. But the divinity of the Father, Son, and Holy Spirit is one, their glory equal, their majesty coeternal.¹

Of course, there are plenty of religious groups that are antitrinitarian (Jehovah’s Witnesses, Christadelphians, Latter-day Saints, Oneness Pentecostals, Muslims, etc.) and they insist that God is not triune. They contend that the Trinity doctrine is not taught in Scripture, and therefore it is idolatrous to worship the Trinity (one God in three persons: Father, Son, and Holy Spirit).

In fact, I recently received the following challenge about this topic on social media. Here’s the stated challenge followed by my response. I think this interaction can be helpful to Christians who engage in evangelism and interreligious (or counter-cult) apologetics.

Respondent:
I found your article entitled “Is the Trinity Doctrine Biblical?” to be not only extremely one-sided, but also scripturally inaccurate. If the Trinity doctrine truly is biblical, then the two must be in complete harmony. But are they? See for yourself.

The Trinity doctrine says: “In all things . . . , the Trinity is to be worshipped.”

In the Bible, Jesus said: “But the time is coming—indeed it’s here now—when true worshipers will worship the Father in spirit and in truth. The Father is looking for those who will worship him that way” (John 4:23, NLT). Nowhere in this verse are the “true worshipers” (Christians) instructed to worship three persons as a single God. Only the Father is “looking” for worship, not the Son or the Holy Spirit.

Me:
Greetings. Thanks for your challenge concerning whether the Trinity should be worshiped.

When interpreting Scripture, we must consider all relevant passages on a given topic and then evaluate their harmony. While you’ve cited John 4:23, you haven’t considered other critical passages concerning the proper worship of God.

In fact, in John 5:23 Jesus says: “[T]hat all may honor the Son just as they honor the Father. Whoever does not honor the Son does not honor the Father, who sent him.”

The ESV Study Bible comments on this passage:

The statement that all may honor the Son, just as they honor the Father in effect establishes Jesus’ right to be worshiped and also amounts to a claim to deity. Whoever does not honor the Son does not honor the Father who sent him shows that religions such as Judaism and Islam that consider Jesus merely a great prophet do not represent the truth about God, because they fail to worship and honor Jesus.²

Also, consider Matthew 28:16–17 and John 20:27–28:

Then the eleven disciples went to Galilee, to the mountain where Jesus had told them to go. When they saw him, they worshiped him; but some doubted (Matthew 28:16–17).

Then he said to Thomas, “Put your finger here; see my hands. Reach out your hand and put it into my side. Stop doubting and believe.”Thomas said to him, “My Lord and my God!” (John 20:27–28)

In both cases Jesus is worshiped by his disciples after his resurrection.

Theologian John Jefferson Davis explains: “In neither instance does Jesus give any indication that such acts of adoration are inappropriate. Contrast Acts 14:11–15, where Paul and Barnabas refuse religious veneration from the crowds in Lystra and Derbe, and Revelation 19:9–10 where the angel refuses worship from John.”³

Further, in Isaiah 45:22–23 we see that only God or Yahweh is to be worshiped:

Turn to me and be saved, all you ends of the earth; for I am God, and there is no other.By myself I have sworn, my mouth has uttered in all integrity a word that will not be revoked: Before me every knee will bow; by me every tongue will swear.

So only before God will every knee bow and every tongue swear, which constitutes worship. Yet in Philippians 2:9–11 the apostle Paul applies this worship to Jesus:

Therefore God exalted him to the highest place and gave him the name that is above every name, that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue acknowledge that Jesus Christ is Lord, to the glory of God the Father.

So the worship that is only to be given to God or Yahweh in the Old Testament is given to Jesus in the New Testament. Therefore, to worship God is to worship both the Father and the Son.

Now how about the Holy Spirit? Is the Spirit worshiped in the New Testament as well? I think the implication is yes. Consider Acts 13:1–13:

Now in the church at Antioch there were prophets and teachers: Barnabas, Simeon called Niger, Lucius of Cyrene, Manaen (who had been brought up with Herod the tetrarch) and Saul.While they were worshiping the Lord and fasting, the Holy Spirit said, “Set apart for me Barnabas and Saul for the work to which I have called them.” So after they had fasted and prayed, they placed their hands on them and sent them off.

So while the Christian leaders at Antioch were worshiping the Lord and fasting, the Holy Spirit spoke and commissioned Saul and Barnabas. “The Lord” or God who was worshiped includes the Holy Spirit and that’s why the Holy Spirit responded.

Is the Spirit the Lord or God as well? Consider 2 Corinthians 3:17: “Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom.”

The ESV Study Bible says one viable way of interpreting this difficult and compressed passage is to conclude that the Spirit is also the Lord (and like the Son, the Spirit is also an extension of Yahweh). “Paul is saying that Yahweh in the OT is not just Father and Son, he is also Spirit.”⁴

Further, in Acts 5:3–4 the Holy Spirit is equated with being God and in various other places in Scripture the Spirit has divine attributes.⁵ I think it’s therefore reasonable and in accord with sound exegesis to conclude that the apostle Paul and the other leaders of the primitive Jewish-Christian church viewed the Holy Spirit as the Lord and God and worshiped the Spirit along with the Son and Father. Thus the triune God of Father, Son, and Holy Spirit is worshiped in the New Testament.

Historic Christianity therefore sees the worship of the Trinity as being harmonious with the Bible.

Takeaway
When Christians through the centuries, including today, have worshiped the Father, Son, and Holy Spirit as God in their creeds and church liturgies they were acting in accord with the teaching of the apostles as seen in the New Testament.

Resources

• My friend and colleague Robert M. Bowman Jr., provides over 1,000 biblical references for the doctrine of the Trinity. See The Biblical Basis of the Doctrine of the Trinity.

• For more on a biblical treatment of the Trinity, see Peter Toon, Our Triune God: A Biblical Portrayal of the Trinity.

• For more on the history of the Trinity, see Robert Letham,  The Holy Trinity: In Scripture, History, Theology, and Worship.

• For more on the general doctrine of the Trinity, see Kenneth Richard Samples, Without a Doubt: Answering the 20 Toughest Faith Questions, chapter 5: “How Can God Be Three and One?”

• For a discussion of the Trinity as a divine mystery, see Kenneth Richard Samples Christianity Cross-Examined: Is It Rational, Relevant, and Good?, chapter 5: “Aren’t Theological Mysteries Just Logical Contradictions?”

Endnotes

1. Athanasian Creed, Christian Reformed Church, accessed February 1, 2024.

2. ESV Study Bible (Wheaton, IL: Crossway Bibles, 2008), 2031.

3. John Jefferson Davis, Handbook of Basic Bible Texts: Every Key Passage for the Study of Doctrine & Theology (Grand Rapids, MI: Zondervan, 1984), 72.

4. ESV Study Bible, 2227. 5. See Kenneth Richard Samples, A World of Difference: Putting Christian Truth-Claims to the Worldview Test (Grand Rapids, MI: Baker Books, 2007), 135.

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These are questions I hear from people in nontrinitarian religions as well as Christians who believe in the Trinity but aren’t quite sure of its biblical basis. Given that the Trinity describes the nature of the God Christians worship, one might expect to see obvious trinitarian language in Scripture.

In fact, I recently received the following question about this topic on social media. Here’s the question followed by my response. I think this interaction can be helpful for Christians who engage in evangelism and interreligious (or counter cult) apologetics.

Question:
A religious person who recently knocked on my door said the Trinity doctrine was invented by the Christian church a couple centuries after Christ and has no biblical support. She said the word Trinity is not even a biblical term.

How can I effectively respond to this challenge?

My Response:
Thanks for your inquiry. I have had members of multiple non-trinitarian religious sects (Jehovah’s Witnesses, Christadelphians, Latter-Day Saints) say the same thing to me.

Here’s my way of responding:

Since the word “trinity” doesn’t appear in the Bible, some people may wonder whether the Trinity doctrine is simply an innovation of historic Christianity. The term trinity comes from the Latin trinitas. Church father Tertullian (c. A.D. 160–230) used this term when he wrote about “the trinity of the one Divinity—Father, Son, and Holy Spirit.”¹

Some people are troubled that the word trinity doesn’t appear in the Bible. But the absence of this word in no way invalidates the doctrine. Many important biblical concepts are conveyed by terms not actually contained in the Bible—for example, terms like Bible, canon, and inerrancy. Nothing in the text prohibits the use of extrabiblical terms to express proper meaning.

Although the word trinity doesn’t appear, Scripture clearly reveals the doctrine of God’s tri-unity (three in one). Here is the Trinity doctrine in six biblically based propositions:²

1. There is one, and only one, God (1 Timothy 2:5).
2. The person of the Father is God (2 Peter 1:17).
3. The person of the Son is God (Titus 2:13).
4. The person of the Holy Spirit is God (Acts 5:3–4).
5. The Father, Son, and Holy Spirit are distinct and simultaneously distinguishable persons (Luke 3:22).
6. The three persons (Father or God; Son or Christ or Lord; and Holy Spirit or Spirit) are frequently listed together in a triadic pattern of unity and equality (John 14:26).

Now here’s the logical inference drawn from these passages:

Since there is only one God, and because the three persons (Father, Son, and Holy Spirit) are all called God, and since the three persons are distinct from each other, and because the three persons are all equal, then the three distinct and equal persons are the one God: Father, Son, and Holy Spirit.

Thus, the Trinity doctrine is not formally and explicitly taught in the Bible but it is derived implicitly from the content of Scripture. Though the apostles of Jesus were Jewish monotheists who believed strictly in one God, they nevertheless recognized that two other persons (the Son and the Holy Spirit) were revealed as God. All three persons possessed the qualities and prerogatives of deity. The apostles therefore modified traditional Jewish monotheism³ in light of the revelation concerning first the Son (Jesus Christ) and later the Holy Spirit.

The formal creedal doctrine of the Trinity took a few centuries to define and defend in light of various heresies that challenged it (modalism, tritheism, etc.).⁴ It was confirmed as church doctrine at the Council of Nicea (325). But the basis of the Trinity is found in the Bible.

Christian historian Mark Noll has written that “the ancient creeds became authoritative in the early centuries because they were thoroughly, profoundly, comprehensively, and passionately rooted in Scripture.”⁵

Takeaways

• The word Trinity is not in the Bible but the truth that God is three and one is biblical. 
• The doctrine of the Trinity is not presented explicitly in Scripture but it is clearly derived implicitly. 
• The formal creedal doctrine of the Trinity did take a few centuries to define and defend.

Resources

• For more on a biblical treatment of the Trinity, see Peter Toon, Our Triune God: A Biblical Portrayal of the Trinity.
• For more on the history of the Trinity, see Robert Letham, The Holy Trinity: In Scripture, History, Theology, and Worship.
• For more on the general doctrine of the Trinity, see “How Can God Be Three and One” in Kenneth Richard Samples, Without a Doubt: Answering the 20 Toughest Faith Questions, chapter 5.
• For a discussion of the Trinity as a divine mystery, see “Aren’t Theological Mysteries Just Logical Contradictions?” in Kenneth Richard Samples, Christianity Cross-Examined: Is It Rational, Relevant, and Good?, chapter 5.

Endnotes

1. Tertullian, De Pudicitia, The Tertullian Project, 21, updated June 13, 2023.

2. For a fuller outline of the Trinity doctrine, see Kenneth Richard Samples, A World of Difference: Putting Christian Truth-Claims to the Worldview Test (Grand Rapids, MI: Baker Books, 2007), 131–132.

3. New Testament and ancient historian Larry W. Hurtado describes the primitive Jewish-Christian church’s view of Jesus as an extension of Yahweh as a mutation within monotheistic Judaism. See Larry W. Hurtado, How on Earth Did Jesus Become a God? Historical Questions about  Earliest Devotion to Jesus (Grand Rapids, MI: Eerdmans, 2005). A similar mutation would take place in also seeing the Holy Spirit as an extension of Yahweh.

4. See “Trinitarian Heresies,” monergism.com, accessed July 27, 2023.

5. Mark A. Noll, Jesus Christ and the Life of the Mind (Grand Rapids, MI: Eerdmans, 2011), 2.

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Problems with Polytheism
Polytheism posits the existence of multiple deities, each distinct from the others. In one sense, animism may be considered the earliest form of polytheism. This diverse array of ancient cultural beliefs (still held by some people today) attributes soul, spirit, and sentience to animals, plants, rocks, and other elements of the natural realm. Each entity is thought to possess at least some unique characteristic, power, and/or responsibility, but none explains the existence of the whole realm of nature, nor does any possess an identifiable capacity for agency. 

Later, more fully organized and articulated belief systems, from Hinduism and paganism to the Greek and Roman pantheon, among others, posited distinct ways in which various gods interact with humans and the rest of nature. Each of the multiplicity of gods is said to exhibit a distinct mind, purpose, and agenda with respect to the world and people. Polytheism, thus, predicts that science may reveal evidence of design in nature; however, any apparent designs will lack evidence of a unified, coordinated, and/or integrated effort. Distinct agendas inevitably will produce some compromises, suboptimizations, and oversights in the designs.

A few millennia ago, even as recently as a few centuries ago, scientific advance was insufficient in most fields to determine with much certainty whether incongruities, compromises, oversights, suboptimizations, and/or a lack of coordination did or did not characterize the record of nature. Such is no longer the case. While the scientific record does reveal examples of design trade-offs, even the trade-offs appear optimized to achieve multiple purposes simultaneously. 

Rather than reflecting the agency of multiple independent minds with distinct purposes and goals, everywhere scientists survey nature’s realm, they see evidence of design that indicates planning, development, and implementation by a single Being with an integrated set of purposes.

If the natural realm owes its existence and operation to multiple distinct gods, science will lead to inevitable clashes. Findings would be inconsistent and incongruous. Science disciplines would collide. Researchers would find it nearly impossible to reconcile scientific data and interpretations. Given the hierarchical nature of polytheism with the gods possessing different levels of authority that sometimes overlap and conflict, moral and ethical chaos would also be inevitable.   

Problems with Strict Monotheism
Strict monotheism—religions and belief systems with one and only one God manifested in a single Person, such as Judaism and Islam—would seem to account readily for the harmony and consistency of designs and processes in the realm of nature, including the appearance of optimized templates in living creatures. Judaism, Christianity, and Islam are often listed together as prime examples of monotheistic religions, but these three “Abrahamic” religious traditions identify the one God and define the term monotheism in distinctly different ways. 

Many Jewish scholars distinguish their version of monotheism from the Christian version by calling theirs “ethical monotheism.” These scholars emphasize the moral and ethical aspects of belief in a single God whose law applies to all of humanity and whose priority is that humans behave decently toward one another. Some Jews, like many Muslims, believe God demands adherence to a specific and narrow set of outward practices, including diet, dress, and grooming. However, Judaism does not demand the conversion of non-Jews as a condition of God’s mercy in judgment, whereas Islam considers non-Muslims as subject to condemnation by Allah, the Islamic name for God.

The most glaring problem with both forms of strict monotheism is the lack of any satisfying answer to the origin of love. If God is a solitary Being, then before creating anything or anyone, this God has no concept of love. This God has no one to express love to or to receive love from. Herein lies a dilemma: how can a Being who has no basis for conceiving of or experiencing love create beings who can and do manifest love? In strict monotheism, love does not exist until the one God creates other beings and endows them with a capacity that he lacks. In strict monotheism, God is compelled to create in order to know and experience what love is.

Islam declares that Allah (God) is greater than everyone/everything and has no need of anything. The dilemma of love’s origin contradicts this declaration. Those Jewish and Islamic apologists who are aware of the dilemma respond by appealing to God’s transcendence (beyond the physics and dimensions of the universe and, therefore, beyond human experience). They claim that God expressed and experienced love in his transcendent state in a manner totally different from the love that humans express and experience. However, this claim still fails to address the origin of the love that humans express and experience.

Problems with Atheism
In the words of the popular twentieth-century astronomer Carl Sagan, “The cosmos is all that is or ever was or ever will be.”² Atheists claim that all the designs scientists and others detect in nature are “apparent” designs, only. They assert that these so-called designs represent accidents of nature, with no intended purposes or goals behind them. They assert the nonexistence of mind, person(s), or intelligence behind nature’s realm, including the origin and design of space-time, matter, and energy.

The problem with their assertions is that they fail to address why things in the natural realm are as they are. They fail to explain why anything exists at all. They face the challenge that strictly naturalistic explanations for the origin of the universe, life, and humanity are becoming more problematic, not less, with advancing scientific research.  

Atheism fails to provide any rational explanation for the exponentially increasing evidence of fine-tuning at all size and time scales within the universe that makes possible not only the existence of humans and our global high-technology civilization but also that of bacteria and molecules. That fine-tuning includes the universe’s mass, age, geometry, expansion rate, rate of decay, laws of physics, and space-time dimensions.³    

How the Trinity Comports with Science
The doctrine of a triune God, which is both unique and central to Christianity, encounters none of the intractable problems associated with animism, polytheism, strict monotheism, and atheism. A God who exists as one Being in three coequal, coeternal, consubstantial divine persons (Father, Son, and Holy Spirit) with identical and indissoluble character attributes, intents, goals, and purposes perfectly matches and explains what the scientific investigation of the natural realm reveals: ubiquitous coherence, consistency, congruity, harmony, efficiency, coordination, and optimization. It explains why the natural realm provides increasing evidence of having been designed and created by a single Being with a single set of purposes. 

The Trinity explains the origin of love. Before the Trinity creates anything, God is experiencing and expressing love. As a triune Being, God is complete and totally fulfilled before creating anything or anyone. Such a God has no need to create.

The perfect love experienced and expressed by the triune God explains the symmetry, elegance, and beauty evident throughout the natural realm—as well as in the mathematics that describe the operation of the natural realm. The triune God provides a complete and consistent explanation for morality, accountability, justice, and mercy. 

Christianity’s triune God explains why design is so ubiquitous, optimal, complex, and integrated throughout nature. It explains why scientists observe these characteristics on all size scales from the largest down to the smallest subatomic, even subparticle, level.

Why a Triunity?
Christian theologians and others have long pondered why God is not a duality or quaternity, rather than a Trinity. One conclusion to this mystery is that God, as a Trinity, best explains the perfection of his love.

Research psychologists have demonstrated that where love is expressed always and only between two persons, its perfection cannot be observed because it remains untested. A third person in a relationship becomes challenging in human (less-than-perfectly-loving) relationships where “triangulation,” or two v. one, presents a temptation. Nevertheless, as many couples have experienced, the birth of children not only adds but also multiplies love, rather than diminishing it.

In some sects of Christianity, an angel or a saint is elevated to the status of Godhead, which makes God a quaternity. As Christian scholars have observed, however, people within these sects struggle in attempts to worship each of the four “persons” equally, given that they possess unequal qualities. Worshippers tend to experience confusion over the roles, or division of labor, among the persons comprising the Godhead.

In the first chapter of his first epistle, the apostle John declares that God is light, and this light has been made visible to the heart of every human being. John goes on to explain in the chapters that follow the three primary components of this light: life, love, and truth. He points out that all three persons of the Godhead shower life, love, and truth upon God’s creation, upon human beings, in particular. In doing so, God the Son takes the primary role in bestowing life, God the Father takes the primary role in showing love, and God the Holy Spirit takes the primary role in communicating truth. This elaboration on what God’s “light” means explains how humans best receive God’s light and eliminates confusion about a divine “hierarchy.” 

The Trinity Demonstrates Divine Inspiration
The Trinity transcends the ability of humans to fully describe, accurately picture, or completely comprehend. As demonstrated in my book, Beyond the Cosmos, the Trinity transcends the limits of the physical laws and space-time dimensions of the cosmos.⁴ Since humans are confined to the dimensions and physical laws, our capacity to visualize is limited by them. 

Something I observed in studying the (non-Christian) major religions of the world during my late teens is that each presented God in a manner that can be visualized by humans. This observation led me to consider that these religions might be merely human constructions rather than divine revelations. When the space-time theorems established that the universe’s space-time dimensions came into existence at the origin of the universe,⁵ I realized that God, the Creator, must possess powers and attributes that transcend these cosmic space-time dimensions. A revelation from this God could and would describe real phenomena that go beyond the ability of humans to visualize.

I saw the Bible standing alone in this respect. The Bible revealed God in a manner that is impossible for humans to conceive through their own reason and imagination. The Bible alone bears the signature of a Being whose message comes to us from beyond the cosmos.

The triune God repeatedly and consistently revealed in both the Old and New Testaments is clearly and uniquely distinct from the gods of all other religious writings and teachings. Nothing like a triune Creator, Redeemer, and Empowerer can be found within the foundational books on which the world’s religions, other than Christianity, stake their claims. 

While Jews and Muslims describe the Old Testament as the true and trustworthy Word of God, they deny a doctrine made especially clear in the Old Testament, particularly in the book of Isaiah. In conversation with both Jews and Muslims, I’ve found that most are either unaware of or have given little attention to the many OT passages showing that God is triune, one essence manifested in three persons.

Given that Isaiah is highly esteemed by both Jews and Muslims, I believe it was more than a mere “stroke of luck” that the only complete book of the Old Testament found among the Dead Sea Scrolls was Isaiah. Three years ago, I assembled a list of verses from Isaiah that express God’s simultaneous singularity and triunity. (See my post, “Does the Book of Isaiah Teach the Trinity?) I encourage readers of this blog to share this scientific perspective on the Trinity not only with fellow Christians but also with Jews, Muslims, participants in cults, and all who struggle to believe that God can be one and three. God’s triune nature makes possible our redemption from sin and an eternal loving relationship with the Creator.       

Endnotes

1. Hugh Ross, The Creator and the Cosmos, 4th ed. (Covina, CA: RTB Press, 2018); Hugh Ross, Designed to the Core (Covina, CA: RTB Press, 2022); Hugh Ross, Improbable Planet (Grand Rapids, MI: Baker Books, 2016); Hugh Ross, Why the Universe Is the Way It Is (Grand Rapids, MI: Baker Books, 2008).
2. Carl Sagan, Cosmos (New York: Ballantine Books, 1985), 1. Sagan previously made this declaration in his Public Broadcasting Service television documentary series, Cosmos: A Personal Voyage, which has been seen by over 500 million people and worldwide ranks as the most widely watched series in the history of American public television. 
3. Ross, The Creator and the Cosmos; Ross, Designed to the Core; Ross, Improbable Planet; Ross, Why the Universe Is the Way It Is. 
4. Hugh Ross, Beyond the Cosmos, 3rd ed. (Covina, CA: RTB Press, 2017), 81–99.

Ross, The Creator and the Cosmos, 100–129.

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Enter the Cappadocian Fathers
Three major Greek-speaking apologists for trinitarianism arose who are called the Cappadocian fathers.¹ (Cappadocia was an area of Asia Minor [modern-day Turkey] where these Christian thinkers and authors primarily lived and ministered.) Two of these men were brothers and the third was a close friend. All three were students of classical culture and had been influenced especially by the third century theologian Origen of Alexandria. In large measure, the Cappadocian fathers worked to resolve the trinitarian controversy of that time. Let’s look briefly at these influential Eastern church leaders and note their contributions to the historic Christian doctrine of the Trinity.

Basil of Caesarea (c. 330–379)
Also known as St. Basil the Great, Basil was the practical leader of the three Cappadocian fathers, a teacher of rhetoric, and a voluminous author.² He came from an affluent family, which afforded him a fine education in such important cities as Caesarea, Constantinople, and Athens. He studied Christian theology as well as the Greek arts and philosophy. Considered a man of action, Basil helped the poor and promoted and influenced the formation of monasticism. His preserved homilies on the first chapter of Genesis (the days of creation) are found in his Hexaemeron.

In his book On the Holy Spirit, Basil defends the Holy Spirit’s deity, one of the first apologetic works on behalf of the third person of the Trinity. Theologian Robert Letham explains Basil’s approach to the Trinity:

“The [Greek] terms ousia and hypostasis were used in various ways up to this point, often as synonyms. Basil proposed that ousia be reserved for the one being of God, while hypostasis be used for the way he is three. This gave the tools needed to consider how God is one in distinction from the way he is three.”³

Here’s Basil on the Trinity:

“Whence is it that we are Christians? Through our faith, would be the universal answer. And in what way are we saved? Plainly because we were regenerate through the grace given in our baptism. How else could we be? And after recognising that this salvation is established through the Father and the Son and the Holy Ghost, shall we fling away that form of doctrine?”⁴

Gregory of Nyssa (c. 335–c. 394)
Basil’s younger brother and disciple, Gregory, was considered the most intellectual of the three. He was drawn more to philosophy and theological speculation. He taught rhetoric and became the Bishop of Nyssa. He was a defender of orthodox doctrine.

Here’s Gregory of Nyssa commenting on how the Trinity doesn’t constitute three Gods:

“But in the case of the Divine nature we do not similarly learn that the Father does anything by Himself in which the Son does not work conjointly, or again that the Son has any special operation apart from the Holy Spirit; but every operation which extends from God to the Creation … has its origin from the Father, and proceeds through the Son, and is perfected in the Holy Spirit … Since then the Holy Trinity fulfils every operation in a manner similar to that of which I have spoken, not by separate action according to the number of the Persons, but so that there is one motion and disposition of the good will which is communicated from the Father through the Son to the Spirit (for as we do not call those whose operation gives one life three Givers of life, neither do we call those who are contemplated in one goodness three Good beings, nor speak of them in the plural by any of their other attributes); so neither can we call those who exercise this Divine and superintending power and operation towards ourselves and all creation, conjointly and inseparably, by their mutual action, three Gods.”⁵

Gregory of Nazianzus (330–c. 391)
Also coming from Cappadocian nobility, this Gregory studied in Athens where he met Basil. He became close friends with the two brothers and is considered one of the outstanding speakers and preachers in church history. He shared Basil’s interest in monasticism. Gregory is called “the theologian” in the Eastern church and he played a significant role in the Council of Constantinople (381).

Here’s Gregory of Nazianzus describing the Trinity:

“Such is my position, then, with regard to these questions. I hope it will always be my position, and that of whoever is dear to me; to worship the Father as God, the Son as God, and the Holy Spirit as God, three individualities, one divinity, undivided in honour and glory and essence and kingdom.”⁶

Takeaway
The Cappadocian fathers affirmed the Nicene orthodoxy of the Father and Son being homoousios (of one substance) and joined with it the Origenist view that the Father, the Son, and the Holy Spirit are three hypostases (persons). Of course, the Cappadocian fathers didn’t resolve all challenges regarding the Trinity. Properly preserving the tri-unity of God is a delicate balance that the church sought to define correctly over the early centuries. Theologian Tony Lane comments, “The Cappadocians greatly advanced the understanding of the Trinity in their time, but their conception of the unity of the Godhead needed to be strengthened.”⁷

Robert Letham puts it well:

“There is an enormous amount we can learn from the Cappadocians. As with all of us, there are also pitfalls in their thought that we should avoid. A critical but appreciative reading of these important theologians and churchmen will do a great deal of good in our own day.”⁸

Church history and historical theology contains much wisdom that can benefit today’s church. We as modern-day believers in Christ should deeply value the important lessons of the past.

Reflection: Your Turn 
Do you sing about the Trinity and hear the doctrine defined and defended in your church?

Resources

• For an introduction to church history and historical theology via biography, see Kenneth Richard Samples, Classic Christian Thinkers.

• For more about St. Basil of Caesarea, see my article Christian Thinkers 101: A Crash Course on St. Basil.

• For more on these three Eastern church fathers, see Anthony Meredith, The Cappadocians.

Endnotes

1. This article was influenced by Robert Letham, “The Three Cappadocians,” in Shapers of Christian Orthodoxy: Engaging with Early and Medieval Theologians, Bradley G. Green ed. (Downers Grove, IL: InterVarsity, 2010), chap. 5; and Tony Lane, A Concise History of Christian Thought (Grand Rapids, MI: Baker, 2006), “Cappadocian Fathers,” 36–39. 

2. Along with Cicero and St. Augustine, Basil is one of the most prolific authors of the ancient world. 

3. Letham, “The Three Cappadocians,” in Shapers of Christian Orthodoxy, 191.

4. Basil, De Spiritu Sancto (On the Holy Spirit), 10.26, in Nicene and Post-Nicene Fathers, trans. Blomfield Jackson, ed. Philip Schaff and Henry Wace, second series, vol. 8 (Buffalo, NY: Christian Literature Publishing Co., 1895), revised and edited for New Advent by Kevin Knight, https://www.newadvent.org/fathers/3203.htm.

5. Gregory of Nyssa, On “Not Three Gods,” in Nicene and Post-Nicene Fathers, trans. H. A. Wilson, ed. Philip Schaff and Henry Wace, second series, vol. 5 (Buffalo, NY: Christian Literature Publishing Co., 1893), revised and edited for New Advent by Kevin Knight, http://www.newadvent.org/fathers/2905.htm.

6. Gregory of Nazianzus, “Theological Orations 5: On the Holy Spirit,” in Five Theological Orations, trans. Stephen Reynolds (2011), 5.28.118, https://tspace.library.utoronto.ca/bitstream/1807/36303/1/Gregory%20of%20Nazianzus%20Theological%20Orations.pdf.

7. Tony Lane, “Cappadocian Fathers,” in A Concise History of Christian Thought (Grand Rapids, MI: Baker, 2006), 38. 

8. Letham, “The Three Cappadocians,” in Shapers of Christian Orthodoxy, 230.

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How often do you use analogies when trying to explain things? I’ll bet you do it more often than you realize.

An analogy involves a comparison between two things, usually for the purpose of explanation or clarification. Analogies are an important part of human thinking. In fact, logician Patrick Hurley says “Analogical reasoning may be the most fundamental and most common of all rational processes.”¹

When it comes to the Trinity, some theologians see the pursuit of an analogy as highly problematic, but I think it’s natural that Christians would seek an appropriate analogy to help explain or clarify this vital doctrine. Yet some analogies are stronger than others.

Some time ago a person approached me on social media and asked about analogies for the Trinity. I present the question here along with my reply. I hope you’ll find the topic stimulating.

Respondent (paraphrased):
I know most analogies for the Trinity reflect a heresy, accidentally or otherwise. This is one I thought of and I’m wondering if it’s fallacious.

Humans are often thought of in a dualist nature, but I see a trinitarian nature in us: our soul (mind, will, emotions) = the Father; our physical bodies = the Son; and our spirit = Holy Spirit. One Being, three distinct aspects/persons. Given that we are created in his image and using the principle that God puts most/all spiritual truth in a parable form in creation, it seems that this would be an obvious idea.

A related question I’ve always had is, What is the difference between soul and spirit? Scripture seems to distinguish between them, but that difference is not obvious to me after much meditation.

My Reply:
Greetings. Many Christian theologians today are wary of using any analogies for the Trinity. The reason for caution is that God’s triune nature is unique. So, as you said, some of the analogies seem to have more in common with heretical views (tritheism, modalism, etc.).

However, human beings are made in God’s image—as you note—thus it seems that we can find ways to understand God’s nature by judiciously using analogical reasoning. Analogies by nature contain both similarities and dissimilarities (like and unlike) so virtually all analogies have weaknesses.²

St. Augustine (354-430), who is known for using psychological analogies, postulated a trinitarian analogy of the human mind consisting of intellect, memory, and will. Unfortunately, I’m not sure anyone today thinks of the mind in exactly that three-component way.

Some Christians propose—like you have—that a single human being is composed of body, soul, and spirit (called trichotomy). However, I think you can make a strong case that the Bible uses soul and spirit interchangeably and that everything the soul does the spirit does, and everything the spirit does the soul does. Compare Jesus being troubled in soul (John 12:27) and in spirit (John 13:21).³

Analogies I use with caution include the Augustinian reflection concerning love: the Trinity is analogous to a loving human family (the Father the Lover, the Son the Beloved, and the Holy Spirit the love that flows from them⁴). I also think threeness and oneness are evidenced in a triangle and unity and diversity are seen in the universe. A trinitarian analogy I’m working on is comparing the three persons in the Godhead to the three transcendentals: the true, the good, and the beautiful. It’s a work in progress.

I hope I’ve helped you think through the issue. Thanks for raising a stimulating topic.

Takeaway
Some Christian thinkers are wary of trinitarian analogies—and with good reason—because many are closer to heretical views. I personally agree with St. Augustine on the matter but attempt to proceed cautiously. Catholic philosopher Peter Kreeft says this about analogies: “Analogies are extremely useful, even essential to human thinking.”⁵

Reflections: Your Turn
Are there analogies of the Trinity that you find helpful? Visit Reflections to comment.

Endnotes

1. Patrick J. Hurley, A Concise Introduction to Logic, 12th ed. (Samford, CT: Cengage Learning, 2015), 524.
2. In logical terms, analogies are best thought of as being strong or weak rather than being good or bad.
3. For a helpful biblical discussion of the positions of trichotomy and dichotomy, see Wayne Grudem, Systematic Theology: An Introduction to Biblical Doctrine (Grand Rapids, MI: Zondervan Academic, 1984), chapter 23, 472–86.
4. See Gerald Bray, “8 Things We Can Learn from Augustine,” Crossway (website), posted November 16, 2015.
5. Peter Kreeft, Socratic Logic: A Logic Text Using Socratic Method, Platonic Questions, and Aristotelian Principles, 2nd ed., ed. Trent Dougherty (South Bend, IN: St. Augustine Press), 102.

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Yet these biblically revealed doctrines contain great mystery, for God is infinite and eternal while human beings—in stark contrast—are finite, temporal creatures. Nevertheless, the Christian church in its historic councils and creeds through the centuries has taken great care to define and offer models of explanation concerning these doctrinal truths.²

Recently, a Facebook friend asked me a series of questions about how Jesus’s state as the incarnate Son of God related to the broader Christian conception of God as Trinity. I’ve included our exchange here (paraphrased) and hope you’ll find it helpful in your theological reflection.

Questions on the Trinity
I want to better understand the relationship between Jesus Christ’s incarnation and the other persons of the Trinity. For example, what happened to the “nature of the Triune Godhead” while the Son (Jesus Christ) was finite here on Earth, but the Father and Holy Spirit were not confined to a finite body? How can one member be finite but the others are not? Can one member have a separate and seemingly distinct, temporal existence, while the other two do not share in that, or so it seems? 

My other questions are related. What happened to the “nature of the Trinity” while Christ was temporal but God the Father and the Holy Spirit were, at least before creation, timeless? The same goes with omniscience. How is Christ limited in his understanding but the other two members of the Godhead are simultaneously all-knowing? 

It seems, from a layman’s perspective, that there is a fundamental change occurring between the three of them. I hope you can help me to understand this better.

My Response
The general Christian orthodox view is that while Jesus Christ was a single person with two distinct-yet-united natures (deity and humanity), during his incarnation the divine nature continued to act in all ways consistent with the Godhead (infinite, eternal [or timeless], omniscient, etc.). So there was no change to the Son’s divine nature (or attributes) that he shares fully and equally with the Father and the Spirit and thus no change in the ontological nature of the Trinity. In the incarnation, the Son simply took to himself a human nature and thus became the God-man.

Jesus’s limitations in his earthly ministry reflected only his human nature. The person of Christ was the eternal Son but it appears Christ usually operated in his human nature and sometimes through his divine nature. A possible analogy is that Christ’s two levels of awareness (human and divine) operated similarly to the human conscious and subconscious states. His human nature would reflect Christ’s conscious awareness while the divine would reflect his subconscious awareness (deeper and yet always available). 

The two natures in Christ’s incarnation are united in the one person but do not mix or mingle and therefore do not negate or deny one another. So the human nature is not divinized and the divine nature is not dragged down. Thus, having two natures is not a logical contradiction because there is no negation or denial (no A and non-A). Yet there is still great mystery in the incarnation.³ 

Thanks for these great theological questions. Keep studying historic Christian doctrine.

Reflections: Your Turn
Why are the doctrines of the incarnation and the Trinity so important to Christianity? Visit Reflections on WordPress to comment.

Resources

• For a discussion of the nature of the Christian God within the context of worldview thinking, see A World of Difference: Putting Christian Truth-Claims to the Worldview Test, chapter 8.

• For more about some of the great Christian thinkers who helped shape Christian orthodoxy, see Classic Christian Thinkers: An Introduction.

• For a discussion of how Jesus Christ is different from the other leaders of the world’s religions, see God among Sages: Why Jesus Is Not Just Another Religious Leader.

Endnotes

1. Traditional Jews and Muslims deny both the incarnation and the Trinity and instead affirm a unitarian view of God (a single God who is one in being and one in person and thus has no begotten coequal son to be incarnated).
2. For a detailed biblical, theological, and apologetics discussion of the incarnation and the Trinity, see Kenneth Richard Samples, Without a Doubt: Answering the 20 Toughest Faith Questions (Grand Rapids, MI: Baker Books, 2004), chapters 5 (Trinity) and 9 (incarnation).
3. For a detailed discussion of how the incarnation relates to the Trinity in terms of mystery and logic, see Christianity Cross-Examined: Is It Rational, Relevant, and Good? (Covina, CA: RTB Press, 2021), chapter 5.

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A significant part of my theological and devotional interest in and attraction to the triune nature of historic Christianity’s God involves the idea that God’s distinctive unity of nature and diversity of personhood means that “God is love” (1 John 4:8, 16) within himself (or themselves). This means that the triune God is analogous to a loving human family. Thus, God is a maximally perfect being who grounds love within himself and therefore does not need to find love in his creation, like alternative unitarian views of God appear to affirm. For further discussion of this provocative topic of God and love, see my article Who Did Allah Love in Eternity?

My ongoing theological reflection and research on trinitarianism led me to write an article some time back entitled My Three Favorite Books on the Trinity. A Muslim read my article and raised an objection to the Trinity doctrine. I’ve included our exchange here (paraphrased) and hope you’ll find it helpful.

The Objection
Respondent: Jesus was a Jew. Not a Christian. Therefore, he never believed in nor affirmed the Trinity. The Trinity doctrine was invented by the apostle Paul. So the emergence of the Trinity had nothing to do with Jesus himself.

Trinitarian theology is the collaboration of Paul and the Christian church. Paul laid the foundation stones on which the Christian church erected the house of modern Christianity. So the Trinity has nothing to do with Jesus and his original teachings.

My Response
Greetings, friend. You are a Muslim and therefore deny the triune nature of God. But please read and consider the biblical basis for the Trinity provided here. You’ll see that I list the key theological claims of the Trinity and scriptural support (both Old and New Testament) without references to the apostle Paul’s writings.

Six simple statements show how the Trinity doctrine is indeed derived from Scripture:

1. There is only one true God (Deuteronomy 6:4; John 17:3).

2. The Father is called or referred to as God (Psalm 89:26; 2 Peter 1:17).

3. The Son (Jesus Christ) is called or referred to as God (John 20:28; Hebrews 1:8).

4. The Holy Spirit is called or referred to (or granted status) as God (Genesis 1:2; Acts 13:2, 4).

5. The Father, Son, and Holy Spirit are distinct persons and can be distinguished from one another (the Father is not the Son; the Father is not the Holy Spirit; and the Son is not the Holy Spirit—Matthew 28:19; Luke 3:22).

6. The three persons (Father or God; and Son or Christ or Lord; and Holy Spirit or Spirit) are frequently listed together in a triadic pattern of unity and equality (John 14:26; 15:26).

So the Trinity can be derived from the Bible even without referencing the apostle Paul’s writings. Your claim that the Trinity doctrine has nothing to do with Jesus but was erected by the apostle Paul and assisted by the church is contradicted by the very words of Jesus in the Gospels.

For example, Jesus himself speaks of the members of the Trinity in the Gospel of Matthew: “Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit” (Matthew 28:19). In other words, disciples are baptized in the name of the triune God.

In the Gospel of John, Jesus also speaks about the persons of the Trinity by expressing an apparent unity of nature and an equality of personhood within the Godhead: “When the Advocate [3rd person] comes, whom I [2nd person] will send to you from the Father [1st person]—the Spirit [3rd person] of truth who goes out from the Father [1st person]—he [3rd person] will testify about me [2nd person] (John 15:26, emphasis added).

Furthermore, your claim that Christianity is the sole product of those who followed after Jesus comes from the claims of the Islamic religion that historically appears almost 600 years after the time of Christ. Islam claims to build upon the truth of the Judeo-Christian Scriptures but at the same time insists that the Bible is corrupted. This seems logically contradictory.

As a Christian, I trust the claims made by Jesus himself and the testimony of his apostles who were witnesses of his life, death, and resurrection.

Thanks for reading and considering my response to your objection. May peace be upon you.

Reflections: Your Turn
How significant is it for Christians and Muslims to discuss their religious agreements and disagreements in a civil and respectful manner?

Resources

• For further study, my friend and colleague Robert M. Bowman Jr. provides over 1,000 biblical references for the doctrine of the Trinity in his article The Biblical Basis of the Doctrine of the Trinity.
• For a respectful and fruitful dialogue I had with a Muslim imam concerning the question of God being love, see Is Allah a Loving God?
• For a further comparison of Islam and Christianity, see my two books God among Sages, 159–188, and A World of Difference, chapter 15.
• For an introduction to Islam by a Muslim scholar, see Islam: Religion, History, and Civilization by Seyyed Hossein Nasr.
• For more about the agreements and disagreements between the religions of Christianity and Islam, see my article How Does Islam Differ from Christianity?

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