Bible Verses About The Trinity
The doctrine of the Holy Trinity — one God in three co-equal, co-eternal Persons: Father, Son, and Holy Spirit — is the central mystery of Christian faith and the first article of the Creed. The word "Trinity" does not appear in Scripture, but the reality it names is pervasive throughout both Testaments and reaches its fullest expression in the New Testament texts below. The doctrine was not invented by the Councils but articulated by them from what Scripture already taught.
The Trinitarian faith of the Catholic Church is expressed at every Mass in the Gloria and the Doxology, at Baptism in the Trinitarian formula, and in the Sign of the Cross that begins every prayer. The Nicene Creed, formulated at the Councils of Nicaea (325) and Constantinople (381), is the Church's definitive Trinitarian confession, drawn from the scriptural sources assembled here.
Note: 1 verse on this page is from the deuterocanonical books — books included in the Catholic Bible but absent from most Protestant translations (Tobit, Judith, Wisdom, Sirach, Baruch, 1–2 Maccabees).
8 verses — Douay-Rheims Bible (1899 Challoner revision) — Public domain
Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost.Matthew 28:19 — Douay-Rheims
The Great Commission — 'in the name' (singular, not plural) of three distinct Persons: the Trinitarian formula for baptism.
And Jesus being baptized, forthwith came out of the water, and lo, the heavens were opened to him: and he saw the Spirit of God descending as a dove, and coming upon him. And behold a voice from heaven, saying: This is my beloved Son, in whom I am well pleased.Matthew 3:16-17 — Douay-Rheims
All three Persons of the Trinity present simultaneously at Jesus's baptism — Father speaks, Son receives baptism, Spirit descends.
The grace of our Lord Jesus Christ, and the charity of God, and the communication of the Holy Ghost be with you all. Amen.2 Corinthians 13:13 — Douay-Rheims
Paul's Trinitarian blessing — the earliest formal Trinitarian formula in the letters, used as a liturgical greeting.
In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God.John 1:1-2 — Douay-Rheims
John's prologue establishes the eternal pre-existence of the Son as the divine Word — the foundation of the doctrine of the second Person.
I and the Father are one.John 10:30 — Douay-Rheims
Jesus's most direct claim to unity with the Father — which his hearers understood as a claim to divinity.
Hear, O Israel, the Lord our God is one Lord.Deuteronomy 6:4 — Douay-Rheims
The Shema — Israel's foundational monotheistic confession, held by the Church in tension with the Trinitarian revelation.
And who shall know thy thought, except thou give wisdom, and send thy Holy Spirit from above.Wisdom 9:17Deuterocanonical — Douay-Rheims
A deuterocanonical text that implicitly distinguishes Wisdom (the Word) and Holy Spirit as agents of divine self-communication.
Come ye near unto me, and hear this: I have not spoken in secret from the beginning: from the time before it was done, I was there, and now the Lord God hath sent me, and his Spirit.Isaiah 48:16 — Douay-Rheims
A mysterious Isaiah text where the speaker is the Servant, sent by both the Lord God and his Spirit — a Trinitarian intimation in the Old Testament.
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Source
All verse texts from the Douay-Rheims Bible (1899 Challoner revision), public domain. The Douay-Rheims is the traditional Catholic English Bible, translated from the Latin Vulgate.