Understanding the Bible • Christian Theology
Trying to Understand the Trinity, Part 1: Three Distinct Persons
Christians believe in one God—not three gods. Yet Scripture reveals the Father, Son, and Holy Spirit as three distinct persons. How can both be true? In Part 1 of this series, we begin with the Bible’s distinction between the Father, Son, and Holy Spirit.
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Quick Answer
The Bible reveals one God who eternally exists as three distinct persons: the Father, the Son, and the Holy Spirit.
The Father is not the Son. The Son is not the Holy Spirit. The Holy Spirit is not the Father. Yet Christianity does not teach that there are three gods.
The historic Christian doctrine of the Trinity summarizes three truths Scripture teaches together:
- There is only one God.
- The Father, Son, and Holy Spirit are distinct persons.
- The Father, Son, and Holy Spirit are each fully God.
The doctrine of the Trinity was not invented to make God complicated. It developed because Christians were trying to faithfully hold together everything Scripture says about who God is.
In this first article, we will concentrate on one part of that biblical picture: the Father, Son, and Holy Spirit are distinct persons.
Is the Word “Trinity” in the Bible?
Pop quiz:
True or false: The word Trinity appears in the Bible.
False.
You will not find the word Trinity in Genesis, Matthew, Romans, or anywhere else in Scripture.
But that does not mean the doctrine itself is absent from the Bible.
Christians regularly use theological terms that summarize biblical teaching even when the exact word does not appear in Scripture. The important question is not simply:
“Does this theological word appear in the Bible?”
The more important question is:
“Does this word accurately describe what the Bible teaches?”
Christians came to use the term Trinity as a convenient way of describing the Bible’s teaching about the Father, Son, and Holy Spirit.
The Latin term Trinitas was used by the early Christian theologian Tertullian around the beginning of the third century. The terminology developed as Christians attempted to explain carefully what Scripture revealed about God.
Important: Christians did not first invent the idea of the Trinity and then search the Bible for verses to support it. The terminology developed as the early church tried to describe the biblical evidence it already had.
What Does “Trinity” Mean?
The word Trinity refers to the Christian belief that the one true God eternally exists as three distinct persons: Father, Son, and Holy Spirit.
Christians are not saying:
- there are three gods,
- the Father, Son, and Holy Spirit are each one-third of God,
- God is one person simply pretending to be three different people, or
- God was the Father in the Old Testament, became the Son in the New Testament, and is now the Holy Spirit during the Church Age.
That last idea may sound like an easy way to explain the Trinity, but it does not fit the biblical evidence. Scripture does not present the Father, Son, and Holy Spirit as three successive roles God plays at different points in history.
Instead, Scripture shows the Father, Son, and Holy Spirit existing and relating to one another as distinct persons.
Historic Christianity therefore teaches that God is one in being or essence and three in person.
A helpful distinction:
Being answers the question, “What is God?”
Person helps answer the question, “Who is God?”
There is one divine Being. Within the one divine Being eternally exist three distinct persons: Father, Son, and Holy Spirit.
That distinction will become increasingly important as we work through this series.
Three Biblical Truths About the Trinity
A helpful way to understand the doctrine of the Trinity is to begin with three biblical claims.
1. God is three distinct persons.
2. Each person is fully God.
3. There is only one God.
Remove any one of these truths and you end up with something other than the historic Christian doctrine of God.
If the Father, Son, and Spirit are not distinct, then God becomes one person appearing in different roles or modes.
If each person is not fully God, then the Son or Spirit becomes something less than God.
If there is more than one God, Christianity becomes polytheistic.
Biblical Christianity holds all three truths together—even when we cannot fully comprehend how they fit together.
Let’s begin with the first truth.
What Does It Mean That God Is Three Persons?
Calling the Father, Son, and Holy Spirit distinct persons means they are not simply three names for the same person.
The Father is not the Son.
The Son is not the Holy Spirit.
The Holy Spirit is not the Father.
Scripture repeatedly distinguishes them from one another. They speak to one another, love one another, send one another, and relate to one another.
One caution: When theologians use the word person, they are not saying that the Father, Son, and Spirit are three separate human-like individuals. The word expresses the real personal distinctions Scripture reveals within the one God.
We can see those distinctions throughout the New Testament.
The Father Is Not the Son
John’s Gospel gives us one of the clearest places to begin.
“In the beginning the Word already existed. The Word was with God, and the Word was God.” — John 1:1
Notice that John says two things about the Word.
First, the Word was with God.
That indicates distinction. The Word exists in relationship with God.
Second, the Word was God.
That points toward deity.
John later makes clear that the Word is Jesus Christ (John 1:14–18).
Jesus can be “with God” and also “be God” because the Son is distinct from the Father while sharing the divine nature.
Jesus Prays to the Father
The distinction becomes even clearer when Jesus prays.
In John 17, Jesus speaks directly to His Father. He speaks of the Father’s love for Him before the creation of the world (John 17:24).
Jesus is not simply speaking to Himself under another name.
The Son speaks to the Father about the Father’s love for the Son before the world began.
There is real relationship here.
The Father loves the Son, and the Son speaks to the Father.
Jesus Intercedes Before the Father
Other passages describe Jesus as our advocate and intercessor before the Father.
First John 2:1 describes Jesus Christ as our advocate with the Father.
Hebrews 7:25 likewise says Jesus continually intercedes for those who come to God through Him.
Once again, Scripture presents a genuine distinction between the Son who intercedes and the Father before whom He intercedes.
Bottom line: The Father and Son are not two names for the same person. Scripture consistently portrays the Son in relationship with the Father.
The Holy Spirit Is Not the Father
Scripture also distinguishes the Holy Spirit from the Father.
Jesus tells His disciples that the Father will send the Holy Spirit in Jesus’ name (John 14:26).
Notice the relationships in that statement:
- The Father sends.
- He sends the Holy Spirit.
- The Spirit is sent in the Son’s name.
Romans 8 gives us another example.
Paul explains that the Holy Spirit helps believers in their weakness and intercedes for them according to God’s will (Romans 8:26–27).
Again, Scripture describes relationship and interaction—not merely one person changing names.
The Spirit who intercedes is distinguished from the Father who knows the mind of the Spirit.
The Holy Spirit Is Not the Son
Jesus also distinguishes Himself from the Holy Spirit.
In John 16:7, Jesus tells His disciples that His departure will result in the coming of the Advocate—the Holy Spirit—whom Jesus will send to them.
The point is simple but important:
Jesus is the One who goes away and sends the Advocate. The Advocate is the One who comes. The Son and the Spirit are therefore distinguished from one another.
This does not mean Jesus abandons His disciples. In the same section of John’s Gospel, Jesus explains that the Spirit will continue His work among them and glorify Him (John 16:13–15).
But the Spirit is not simply another name for Jesus.
Where Do We See All Three Persons Together?
Perhaps the clearest picture comes at the baptism of Jesus.
Matthew 3:16–17 describes three things happening together:
- The Son is baptized and comes up from the water.
- The Holy Spirit descends upon Him like a dove.
- The Father speaks from heaven and identifies Jesus as His beloved Son.
This scene makes it especially difficult to understand Father, Son, and Spirit as merely three roles played by one divine person at different times.
They are present at the same time.
The Son is not speaking from heaven about Himself while simultaneously descending upon Himself as the Spirit.
At Jesus’ baptism, the Son stands in the water, the Spirit descends, and the Father speaks from heaven. One God—yet three clearly distinguishable persons.
We find the same threefold pattern elsewhere in the New Testament.
Jesus commands His followers to baptize disciples in the singular “name” of the Father, Son, and Holy Spirit (Matthew 28:19).
Paul likewise closes 2 Corinthians by speaking together of the grace of Jesus Christ, the love of God, and the fellowship of the Holy Spirit (2 Corinthians 13:14).
Why Does This Distinction Matter?
It may be tempting to simplify the Trinity by imagining that God is one person who simply appears in three different ways.
Sometimes this idea is explained historically:
Old Testament: God appeared as the Father.
New Testament: God appeared as the Son.
Church Age: God now appears as the Holy Spirit.
This view is commonly associated with what theologians call modalism: the idea that Father, Son, and Spirit are different modes, manifestations, or roles of one divine person rather than three eternally distinct persons.
The problem is that Scripture repeatedly places the Father, Son, and Holy Spirit in relationship with one another.
The Father loves the Son before creation (John 17:24).
The Son prays to the Father (John 17).
The Father sends the Spirit (John 14:26).
The Son sends the Spirit (John 16:7).
At Jesus’ baptism, Father, Son, and Spirit are all revealed simultaneously (Matthew 3:16–17).
And even the Old Testament gives glimpses that prevent us from simply assigning one divine person to each era. Genesis opens with the Spirit of God present and active at creation (Genesis 1:2), while the New Testament teaches that the Son was already present and active in creation as well (John 1:1–3; Colossians 1:16).
The Father did not stop being the Father when Jesus came. The Son did not begin to exist at Bethlehem. And the Holy Spirit did not begin to exist at Pentecost.
Father, Son, and Holy Spirit eternally exist as the one true God.
Heart Check
The Trinity can quickly become an intellectual puzzle.
And there is certainly a place for careful theological thinking.
But Scripture reveals God’s nature so that we might know Him, not merely diagram Him.
Consider:
- Do I allow Scripture to shape my understanding of God even when He is difficult for me to comprehend?
- Have I reduced God to an analogy or explanation that is easier than what Scripture actually reveals?
- Do I relate to the Father as the One who loves and sends?
- Do I trust the Son who came to save and now intercedes for me?
- Do I live consciously dependent upon the Holy Spirit who dwells within believers?
Mystery does not mean contradiction.
It means there are realities about the infinite God that finite human beings should not expect to exhaust completely.
We may never completely understand the Trinity, but we can faithfully believe what God has revealed about Himself.
Key Takeaway
Scripture reveals the Father, Son, and Holy Spirit as three distinct persons—not three gods and not three temporary roles played by one person.
The Father speaks to and loves the Son. The Son prays to and intercedes before the Father. The Father and Son send the Holy Spirit. At Jesus’ baptism, all three appear together.
This gives us the first piece of the biblical doctrine of the Trinity: the Father is not the Son, the Son is not the Spirit, and the Spirit is not the Father.
But that raises another question.
If the Father, Son, and Holy Spirit are three distinct persons, does Scripture really teach that each one is fully God?
That’s where we’ll turn next.
Keep Studying
To explore the distinction between the Father, Son, and Holy Spirit for yourself, read:
- Matthew 3:13–17 — Father, Son, and Spirit at Jesus’ baptism.
- Matthew 28:18–20 — Baptism in the name of the Father, Son, and Holy Spirit.
- John 1:1–18 — The Word is both with God and is God.
- John 14:15–27 — Jesus promises that the Father will send the Holy Spirit.
- John 16:5–15 — Jesus describes His departure and the Spirit’s coming ministry.
- John 17 — Jesus speaks to His Father.
- Romans 8:26–27 — The Holy Spirit intercedes for believers.
- 2 Corinthians 13:14 — Father, Son, and Spirit appear together in Paul’s blessing.
Next in the series:
Trying to Understand the Trinity, Part 2: If the Father, Son, and Holy Spirit are distinct persons, does the Bible teach that each person is fully God?
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