The Trinity: One God in Three Persons

**"Hear, O Israel: The Lord our God is one Lord."** — Deuteronomy 6:4 (KJV)

**"Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost."** — Matthew 28:19 (KJV)

The doctrine of the Trinity is the most distinctive and the most precious truth of the Christian faith. No other religion teaches it. Judaism affirms the oneness of God but denies the tri-unity. Islam declares God's absolute unity and calls the Trinity the worst of heresies. The cults of the nineteenth and twentieth centuries — Mormonism, Jehovah's Witnesses, Christian Science — all deny it.

Yet the Trinity is not a theological abstraction invented by councils. It is the living reality at the heart of the Christian experience. Every believer who has ever cried "Abba, Father" has experienced the Trinity. Every believer who has ever trusted in the Son has experienced the Trinity. Every believer who has ever been comforted by the Spirit has experienced the Trinity.

The Trinity is not three gods. That is tritheism, and it is heresy. The Bible declares from beginning to end that there is one God — one Being, one essence, one Lord.

The Trinity is not one God wearing three masks. That is modalism (or Sabellianism), and it is heresy. The Father is not the Son, the Son is not the Spirit, and the Spirit is not the Father. They are distinct persons, each fully God, each possessing the whole divine nature.

The Trinity is not a hierarchy of gods. That is Arianism, and it is heresy. The Son is not a lesser God created by the Father. The Spirit is not an impersonal force emanating from the Father. Each person is co-equal, co-eternal, and co-essential.

The doctrine of the Trinity may be summarized in three statements:

1. There is one God. 2. The Father is God, the Son is God, and the Holy Spirit is God. 3. The Father is not the Son, the Son is not the Spirit, and the Spirit is not the Father.

This is not a contradiction but a mystery. A contradiction is the conjunction of opposites in the same respect at the same time. The Trinity does not say that God is one and not one in the same respect. It says that God is one in essence and three in persons. These are different respects — different categories — not contradictory assertions.

The Old Testament declares the oneness of God with absolute clarity: "The Lord he is God; there is none else beside him" (Deuteronomy 4:35). But it also contains hints of plurality within that unity. At creation, God says, "Let us make man in our image, after our likeness" (Genesis 1:26). The word is Elohim — a plural noun used with singular verbs — suggesting a unity that contains plurality.

The New Testament reveals the Trinity explicitly. At Jesus's baptism, the Father speaks from heaven, the Son stands in the water, and the Spirit descends like a dove (Matthew 3:16-17). In the upper room discourse, Jesus speaks of sending the Spirit from the Father (John 14:16, 26; 15:26; 16:7). In the Great Commission, baptism is to be administered "in the name of the Father, and of the Son, and of the Holy Ghost" (Matthew 28:19) — one name (singular) for three persons.

Paul's benedictions assume the Trinity: "The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Ghost, be with you all" (2 Corinthians 13:14). Peter's doxology does the same: "elect according to the foreknowledge of God the Father, through sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ" (1 Peter 1:2).

The Trinity is not merely a doctrine to be believed; it is a reality to be experienced. Every aspect of salvation involves all three persons of the Godhead:

**Election:** The Father chooses His people in Christ "before the foundation of the world" (Ephesians 1:4). The Son is the Lamb "slain from the foundation of the world" (Revelation 13:8). The Spirit is the seal and earnest of our inheritance (Ephesians 1:13-14).

**Redemption:** The Son came to do the will of the Father (Hebrews 10:7). The Father laid on Him the iniquity of us all (Isaiah 53:6). The Spirit anointed Him for His messianic work (Luke 4:18).

**Application:** The Spirit applies the work of the Son to the elect, drawing them to the Father. "No man can come to me, except the Father which hath sent me draw him" (John 6:44). The Son reveals the Father to whom the Spirit draws. The Spirit regenerates the heart that the Son has redeemed.

**Sanctification:** The Father disciplines His children (Hebrews 12:5-10). The Son sanctifies them by His truth (John 17:17, 19). The Spirit produces the fruit of holiness (Galatians 5:22-23).

**Glorification:** The Father receives the redeemed into His presence. The Son presents them as His bride, without spot or wrinkle (Ephesians 5:27). The Spirit completes His transforming work, making them fit for glory (2 Corinthians 3:18).

Why does this matter? Because the Trinity shapes everything about how we relate to God.

We do not pray to an abstract force but to a Father who loves us, through a Son who died for us, by the power of a Spirit who dwells in us. We do not worship a distant deity but a triune God who has drawn near. We do not serve a monolithic tyrant but a community of love that has invited us into its fellowship.

J.I. Packer captures it beautifully:

> "The Trinity is the basis of the gospel, and the gospel is the declaration of the Trinity in action for our salvation."

The Trinity is the Christian's most precious mystery because it is the mystery of God's own being — and God has invited us into it. Jesus prayed "that they may be one, even as we are one" (John 17:11, 22). The unity we are called to is not merely human solidarity but participation in the triune life of God.

This is beyond comprehension — not because it is irrational but because it is supra-rational, above our reason. We do not understand the Trinity; we adore it. We do not explain it; we worship it. We do not master it; we are mastered by it — drawn into the fellowship of the Father and the Son through the Holy Spirit, caught up into the eternal love that has no beginning and no end.

"Holy, holy, holy, Lord God Almighty, which was, and is, and is to come" (Revelation 4:8). One God, three persons, eternal in majesty, infinite in glory. Blessed be the Trinity.

*Scripture quotations from the King James Version (KJV)*