The Question of the One True God

Scripture is unambiguous on one foundational point: there is only one true God. Yet the same Scriptures repeatedly identify the Father, the Son, and the Holy Spirit as fully and truly God—not by courtesy, title, or function, but by nature, essence, attributes, works, and worship.

The doctrine of the Trinity is not imposed upon Scripture by later creeds; rather, it is deduced from Scripture’s own categories. The argument unfolds in three stages:

  1. Scripture defines what makes God “God” in the absolute sense
  2. Scripture applies those exclusive divine identifiers to the Son
  3. Scripture applies the same identifiers to the Holy Spirit, while maintaining personal distinction

If these premises are true, then the conclusion follows necessarily:
The one true God eternally exists as Father, Son, and Holy Spirit.

I. Scripture Distinguishes the One True God from All So-Called “Gods”

1. God by Nature, Not by Name

Scripture recognizes that others may be called gods, but denies that they are God by nature.

“Formerly, when you did not know God, you were enslaved to those that by nature are not gods.”
(Galatians 4:8, ESV)

Paul uses the Greek term φύσει (physei), meaning inherent nature or essence. Whatever else may bear the title “god,” only one being possesses the essence of deity.

2. Yahweh Alone Is the True God

Scripture repeatedly distinguishes Yahweh from all others by exclusive titles:

“But the LORD is the true God; he is the living God and the everlasting King.”
(Jeremiah 10:10)

“You turned to God from idols to serve the living and true God.”
(1 Thessalonians 1:9)

He alone is:

  • The Great God (Daniel 2:45; Nehemiah 8:6)
  • The Eternal God (Deuteronomy 33:27; Romans 16:26)
  • The First and the Last (Isaiah 44:6)
  • God our Savior (Isaiah 43:11)
  • God Almighty (Genesis 17:1)
  • God over all (Psalm 103:19)
  • The only Rock (Isaiah 44:8)

These titles are not poetic flourishes—they are ontological markers. They define what it means to be God in the absolute sense.

3. God Is Distinguished by Unique Divine Works

Yahweh alone:

  • Creates all things
  • Sustains all things
  • Saves His people
  • Receives worship

“I am the LORD, who made all things, who alone stretched out the heavens, who spread out the earth by myself.”
(Isaiah 44:24)

“From him and through him and to him are all things.”
(Romans 11:36)

II. Jesus Christ Is Identified as God in Every One of These Ways

1. Christ Is Explicitly Called God

“And we know that the Son of God has come… He is the true God and eternal life.”
(1 John 5:20)

Grammatically and contextually, “He” refers to Jesus Christ.

“To them belong the patriarchs, and from their race, according to the flesh, is the Christ, who is God over all, blessed forever.”
(Romans 9:5)

“Waiting for our blessed hope, the appearing of the glory of our great God and Savior Jesus Christ.”
(Titus 2:13)

2. Christ Possesses the Full Essence of Deity

“For in him the whole fullness of deity dwells bodily.”
(Colossians 2:9)

Paul uses θεότης (theotēs), a term universally recognized by lexicons as referring to absolute deity, not a lesser divine quality.

  • BDAG: “the state of being God”
  • Louw–Nida: “the essence of Godhood”

3. Christ Is Eternal and Uncreated

“In the beginning was the Word… and the Word was God.”
(John 1:1)

John deliberately contrasts “was” (ēn) with “came into being” (egeneto):

“All things were made through him, and without him was not anything made that was made.”
(John 1:3)

Jesus Himself declares:

“Before Abraham was, I AM.”
(John 8:58)

4. Christ Is Creator, Sustainer, and Goal of All Things

“All things were created through him and for him.”
(Colossians 1:16)

“He is before all things, and in him all things hold together.”
(Colossians 1:17)

“By whom are all things, and through whom we exist.”
(1 Corinthians 8:6)

5. Christ Receives Divine Worship

“To him who sits on the throne and to the Lamb be blessing and honor and glory and might forever and ever!”
(Revelation 5:13)

This worship is latreia—a form reserved for God alone.

III. The Holy Spirit Is Also Identified as God

1. The Spirit Is Called God and Lord

“You have not lied to men but to God.”
(Acts 5:4)

“The Spirit of the LORD speaks by me… the God of Israel has spoken.”
(2 Samuel 23:2–3)

2. The Spirit Performs Divine Works

“The Spirit of God has made me.”
(Job 33:4)

“You send forth your Spirit, they are created.”
(Psalm 104:30)

“It is the Spirit who gives life.”
(John 6:63)

3. The Spirit Possesses Divine Attributes

  • Eternal (Hebrews 9:14)
  • Omnipresent (Psalm 139:7)
  • Omniscient (1 Corinthians 2:10–11)

“For the Spirit searches everything, even the depths of God.”
(1 Corinthians 2:10)

4. The Spirit Is a Divine Person, Not an Impersonal Force

The Spirit:

  • Speaks (Acts 13:2)
  • Wills (1 Corinthians 12:11)
  • Loves (Romans 15:30)
  • Can be grieved (Ephesians 4:30)

“Set apart for me Barnabas and Saul for the work to which I have called them.”
(Acts 13:2)

IV. The Inevitable Conclusion: One God, Three Persons

Scripture teaches:

  • There is one true God
  • The Father is God
  • The Son is God
  • The Holy Spirit is God
  • They are personally distinct
  • They share one divine essence

This is not tritheism, nor modalism, but the biblical doctrine of the Trinity—the only framework that does justice to all of Scripture.

Conclusion: The God Who Saves Is the God Who Is Three

The God who created, sustains, redeems, indwells, and glorifies His people is Father, Son, and Holy Spirit. This is why Christians pray, worship, baptize, and live in the name of the Triune God (Matthew 28:19).

To deny the Trinity is not to simplify God—but to silence Scripture at its most profound moments.

Selected Scholarly Sources