Why I Believe in the Trinity

“And Jesus came and said to them, "All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age” (Matthew 28:19-20).

Historic Christianity is inherently a Biblical and propositional religious faith made up of certain inalterable and nonnegotiable doctrinal tenets that carefully articulate the specific beliefs of the Christian Church. It is this objective and immutable body of theological beliefs that coherently delineates, permanently, for time memorial, the cognitive doctrinal specifics of Biblical revelation and simultaneously and decisively differentiates and sets true Christianity apart from all other non-Christian religious, philosophical and ideological alternative contemporarily vying for the intellectual, religious and volitional acquiescence, allegiance and adherence of humanity.

Throughout the annals of Church history the Christian Church has universally stood for certain quintessential and definitive doctrines that are absolutely essential to every true believer in our Lord Jesus Christ. These authoritative Biblical theological teachings make up the cognitive essence of orthodox Biblical Christianity and thus are of paramount and singular importance to every Christian. One such nonnegotiable doctrine of historic Christendom that every true Christian should be able to articulate and at once defend, is the all important doctrine of the Trinity, or Tri-unity of God which sets forth the orthodox Christian belief that within the one true and living God, simultaneously exists three distinct divine, indivisible, immutable, co-eternal and co-equal persons who share the same transcendent and inviolable attributes and spiritual essence, God the Father, God the Son and God the Holy Spirit (Matthew 28:19-20 and 2 Corinthians 13:14).

Contrary to the charge of polytheism and tri-theism leveled against orthodox Christianity by many of it’s Islamic and Unitarian detractors who argue that we believe in more than one God, Biblical Christianity, like it’s ancestral cousin, Mosaic Judaism, is strictly and exclusively a Monotheistic religion, in that we, the true Church of Jesus Christ avowedly believe, without compromise and exception, that there exists only one true and living God, yet in the singular, eternal and indissoluble nature of God, concurrently exists three distinct, distinguishable and sentient persons, the Father, the Son and the Holy Spirit who possess the same spiritual nature and inherent stature of equality.

Equally forthright, in our devout Trinitarian Monotheistic belief is the wholesale and adamant and outright renunciation and decisive rejection of any form of Sabellianism, Dynamic Monarchism or Modalism which espouses the radically heterodox view that within the nature of God there exists simply one singular person who at times takes on a different mode of being, at times expressing himself as the Father, the Son and the Holy Sprit, thus denying the distinct individual personhood of the three members of the godhead and instead collapses all three into one person. Contrary to these heresies, the Bible is clear that there is one true and living God and in God exists three distinct persons, the Father, the Son and the Holy Spirit.

The word "Trinity" comes from "Trinitas", a Latin abstract noun that means "three-ness," "the property of occurring three at once" or "three are one." The Greek term used for the Christian Trinity, "Τριάς" ("Trias," gen. "Triados") means "a set of three" or "the number three, and has given the English word triad. The first recorded use of the word in Christian theology was in about 180 AD by Theophilus of Antioch who used it of "God, his Word, and his Wisdom (To Autolycus, II.XV ) In about 200 AD Tertullian used it of the Father, Son and Holy Spirit. " In this way also, that they are all of the one, namely by unity of substance, while nonetheless is guarded the mystery of that economy which disposes the unity into trinity, setting forth Father and Son and Spirit as three, three however not in quality but in sequence, not (three) in substance but in aspect, not in power but in its manifestation, yet of one substance and one quality and one power..." Tertullian, Against Praxeas" section 2,)

The following easy to follow deductive line of argumentation conclusively demonstrates the truthfulness of the Doctrine of the Trinity from the Biblical record.

I. There is but one God

II. There is a plurality of persons within the godhead.

III. The Bible calls the Father, “God”

IV. The Bible calls the Son, “God”

V. The Bible calls the Holy Spirit “God”

VI. The Bible teaches that within the one God exists three distinct, co-eternal, co-equal and indivisible persons: God the Father, God the Son, God the Holy Spirit.



1. Christianity is Exclusively Monotheistic (There is but one God)

Deuteronomy 4:35-36, 6:4, 1 Kings 8:60, Isaiah 43:10, 44:5-8, 45:5, Jeremiah 10:10, Mark 12:29-32, John 17:3, 1 Corinthians 8:4-6 and 1 Timothy 2:5.



2. There is a plurality of individuals within God

Genesis 1:26, Genesis 3:22, Genesis 11:6-7, Isaiah 6:8, Matthew 3:16-17, Matthew 28:19-20, John 14:26, 2 Corinthians 13:14.


3. The Bible calls the Father “God” or “God the Father”

John 6:27, Romans 1:7, 1 Cor 1:3, 2 Cor 1:2,
Galatians 1:1, Ephesians 1:2, Philippians 1:2, Colossians 1:3,
1 Thess. 1:1, 2 Thess. 1:2, 1 Timothy 1:2, 2 Timothy 1:2,
Titus 1:4, Philemon 1:3, 1 Peter 1:2.

John 1:33, John 1:34, John 5:36, John 5:37, John 8:18, John 10:37, John 10:38, John 11:42, John 15:24; Psalms 2:7, Psalms 40:7; Isaiah 11:1-3, Isaiah 42:1, Isaiah 61:1-3; Matt. 3:17, Matt. 17:5; Mark 1:11, Mark 9:7; Luke 3:22; Luke 4:18-21, Luke 9:35; Acts 2:22, Acts 10:38; 2Peter 1:17.

4. The Bible calls Jesus Christ God.

Isaiah 7:14. 9:6-7, Matthew 1:23, Matthew 28:19-20, John 1:1-3, 14, 18, 30, 5:18-23, 8:55-58, 10:30-38, 14:1-14, 20:28, Acts 20:28, Romans 9:5, Philippians 2:5-11, Colossians 1:15-18, 2:8-9, 1 Timothy 3:16, Titus 2:13, Hebrews 1:1-8, 2 Peter 1:1, 1 John 5:20, Revelation 1:6-8, 18, 21:6

Also Jesus is worshipped as God (Matthew 1:18-23, John 9, 20:28, Hebrews 1:6-9 contrast this with in Revelation 1 and 21 where the
Angel told John not to worship him, but in Hebrews 1:6-9, wise men, Matt 1 they worshipped Christ as God, Blind man who was healed worshipped Jesus Christ. Colossians 2:18 says “angel worship” is false. Revelation 19:10, 22:8, 22:9)


1. The Bible calls the Holy Spirit God

Matthew 3:16-17, Matthew 28:19-20, Acts 5:3-5,

The Holy Spirit is a person who speaks, and directs
According to His will: John 14:26, 15:26, 16:13.
Acts 13:1-4, Acts 20:23-28, 1 Corinthians 12:11,
Hebrews 9:14 (Spirit is eternal).


Isa.11:2, Isa. 42:1, Isa. 59:21, Isa. 61:1; Luke 3:22; John 1:31-34, John 3:34; Col.1:18, Col.1:19.