Theme 11: The Triune Nature of God

“Go, therefore, and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit.” — Matthew 28:19 

Theme Introduction: One God, Three Persons

Up to this point, we have explored many attributes of God—His eternity, holiness, love, justice, sovereignty, and wisdom. Now we come to a truth that brings profound depth and clarity to all of them:

God is one—and God is three.

This is what Scripture reveals about the triune nature of God: There is one God

This one God exists as Father, Son, and Holy Spirit

Each is fully God

Yet there is not three gods, but one

This is not a contradiction—it is a mystery revealed in Scripture.

God is one in essence and three in person.

This truth is not an abstract theological idea. It is essential for understanding:

who God is

how God relates

how the Kingdom functions

The Kingdom reflects the relational nature of the King.

Tracing the Theme Through Scripture

1. There Is One God

The foundation of everything is that there is only one God.

Deuteronomy 6:4 declares:

“Hear, Israel! The Lord is our God, the Lord is one!”

This establishes:

monotheism

the uniqueness of God

the exclusivity of His identity

There are not: multiple competing gods

layers of divine beings

There is one true God.

This truth remains constant throughout Scripture.

2. The Father Is God

Throughout Scripture, the Father is clearly identified as God.

Jesus consistently speaks of:

“My Father”

“your Father in heaven”

In John 6:27, Jesus refers to:

“God the Father”

The Father is:

the source

the initiator

the one who send 

The Father is fully God.

3. The Son Is God

At the same time, Scripture clearly teaches that Jesus (the Son) is fully God.

John 1:1 states:

“The Word was with God, and the Word was God.”

John 1:14 identifies the Word as becoming flesh—Jesus.

Additionally:

John 20:28 — Thomas calls Jesus, “My Lord and my God!”

Hebrews 1:3 — Jesus is the radiance of God’s glory

Jesus:

forgives sins

receives worship

exercises divine authority

The Son is not a created being—He is fully God.

4. The Holy Spirit Is God

The Holy Spirit is also revealed as fully God.

In Acts 5:3–4, lying to the Holy Spirit is equated with lying to God.

The Spirit:

speaks

guides

empowers

indwells believers

He is not an impersonal force.

The Holy Spirit is a divine person.

5. The Three Are Distinct, Yet One

Scripture shows both: distinction between Father, Son, and Spirit

unity among them

At Jesus’ baptism (Matthew 3:16–17):

the Son is baptized

the Spirit descends

the Father speaks

All three are present, yet distinct.

And yet, there is still only one God.

This is not three separate beings working together.

It is one God in three persons.

6. The Triune Relationship Is Eternal

The relationships within the Trinity did not begin at creation.

They are eternal.

John 17:24 shows that: the Father loved the Son before creation

This means:

God has always existed in relationship.

Before:

creation

humanity

time as we know it

there was:

love

fellowship

unity

within God Himself.

7. The Trinity Works in Unity

Although the Father, Son, and Spirit are distinct, they do not act independently.

They work in perfect unity.

In creation:

the Father wills

the Son creates (John 1:3)

the Spirit hovers (Genesis 1:2)

In salvation:

the Father sends

the Son redeems

the Spirit applies

The Trinity acts with perfect unity and shared purpose.

8. The Trinity Reveals the Nature of Love

Because God is triune, love is not something external—it is internal to His nature.

Love exists:

between Father and Son

in the unity of the Spirit

This means:

Love is not something God learned—it is something He eternally is.

The Trinity explains how: God can be love even before creation.

9. The Trinity Is Revealed Fully in Jesus

While the Old Testament hints at plurality within God, the full revelation comes in the New Testament.

Jesus:

reveals the Father

sends the Spirit

speaks of their unity

John 14–16 is filled with this relational language.

Jesus makes the triune nature of God known.

10. The Trinity Shapes the Life of the Believer

The triune nature of God is not just theological—it is relational.

Believers:

are brought to the Father

through the Son

by the Spirit

2 Corinthians 13:14 says:

“The grace of the Lord Jesus Christ, and the love of God, and the fellowship of the Holy Spirit…”

The Christian life is participation in the life of the Trinity.

The King and His Kingdom (Expanded Reflection)

1. The Kingdom Is Relational at Its Core

Because God is triune, relationship is fundamental

not optional

The Kingdom is not built on isolation, but on:

connection

unity

love

2. The Kingdom Reflects Unity in Diversity

The Trinity is  one yet three.

This becomes a pattern for the Kingdom:

many people

one body

united in purpose

3. The Kingdom Operates Through Shared Purpose

Just as the Father, Son, and Spirit act in unity:

the Kingdom advances through cooperation

not competition

4. The Kingdom Invites Us Into God’s Life

Through Christ, we are not merely observers—we are participants.

We are brought into relationship with the triune God.

5. The Kingdom Displays the Nature of God

The Kingdom is meant to reflect:

God’s love

God’s unity

God’s relational nature

Key Scriptures

Deuteronomy 6:4

Matthew 28:19

John 1:1–14

John 20:28

Hebrews 1:3

Acts 5:3–4

Matthew 3:16–17

John 17:24

2 Corinthians 13:14

Reflection Question

How does understanding God as triune change the way I think about relationship, love, and community?

Obedience Question

In what ways can I grow in reflecting unity and love in my relationships as a reflection of God’s nature?

Disciple-Making Question

How can I help others understand the Trinity not just as a doctrine, but as a relational reality that shapes life in the Kingdom?

Curtis Sergeant