Does the bible teach the trinity?

It absolutely does. But all cults deny it and by doing so they deny the gospel and the very one who can save them.

This denial had commenced from the beginning of the church and is even stronger today.

The bible does not mention the word “trinity” but it defines it by teaching God as having a tri-une nature. Meaning God is not one person, or a force, He has revealed himself as three persons that are the one God. The Father, the Son and the comforter. The Father who sent the son from heaven, the Son who took on human flesh and died for our sins, rising on the third day and the comforter who was sent to live in the believers saved by the gospel and gibe them understanding of God’s nature.

Father , the Son (Jesus ) and the comforter/helper are all called YHWH in the Old Testament and the New Testament the equivalent of Lord (kurious).

So all three and only three simultaneously exist, are eternal and have the attributes, characteristics and nature of God.

How does the Bible teach us this doctrine? From the beginning: Gen 1:1: “In the beginning God created the heavens and the earth.” In other words, only God existed before anything was created; the heaven and being the first things made.

 In Heb.1:10 The Father speaking of the Son, “And, Thou, Lord, in the beginning has laid the foundation of the earth; and the heavens are the works of your hands... “

Here we have the Father  saying to the son that he is the creator, of both the earth and the heavens, just as Gen.1:1 teaches.

Jesus, in the only lengthy prayer we have recorded of him in the New Testament,  the night before his crucifixion stated He was with the Father before the world began. John 17:5"And now, O Father, glorify Me together with Yourself, with the glory which I had with You before the world was.”

Here is asking to be reinstated with the glory he had because of leaving his position in heaven and becoming man on earth. He affirms that He existed with the Father before the world was, which again according to Gen.1:1 was the first thing created.  He also had glory with the Father. The Bible makes the statement that God will not give his glory to another, meaning his essence and majesty belong only to him. Jesus shared in this glory.

 The question people need to ask is, if he (The Son- Jesus) is there before the world began having glory then he is not created, because only God existed prior.

This is why it is written John 1:14: “And the Word became flesh and dwelt among us, and we beheld His glory, the glory as of the only begotten of the Father, full of grace and truth.”

2 Cor.5:19 God was in Christ reconciling the world to himself

Col 1:16-17 tells us all things were made by him

John 1:1-3:  He was in the beginning with God, and is God and All things were made through Him.

“To make all see what is the fellowship of the mystery, which from the beginning of the ages has been hidden in God who created all things through Jesus Christ” (Eph. 3:9)

Heb.3:6 He who built all things is God

Isa 42:5 Thus says God the LORD, created the heavens. Isa. 40:28 creator of all things. The Triune God created all things Isa.45:8,12,18

Many who criticize the Trinity doctrine complain that the Holy Spirit appears to be absent in many instances where the Father and the Son are mentioned together with greater occurrence. While it first appears that this is the case in many instances, the Holy Spirit certainly is mentioned in many places alongside the Father and the Son (some examples: Matt. 28:19; 2 Cor. 13:14; 1 Pet. 1:2, etc.) and the Bible calls Him God and gives him the same attributes. The New Testament focuses on the Father and Son relationship, one in heaven the other on earth to prove who the Son is. The work of the Holy Spirit is to draw our attention to the Father and the Son, rather than to Himself (John 15:26; 16:15).

Where is the Holy Spirit? He is not absent but present in the believer , and we are told we have become the temple of God(1 Cor.3:16; 2 Cor .6:16). The Holy Spirit wrote Scripture (2 Peter 1:21), and reading God’s Word enables us to have understanding of the Father and the Son.

Every title used in the Old Testament for YHWH is transferred to the Son who the Bible claims was God revealed in the flesh (1Timothy 3:16).

This is why John writes under inspiration of the comforter (the Holy Spirit)

Jn. 5:19-20 “We know that we are of God, and the whole world lies under the sway of the wicked one. And we know that the Son of God has come and has given us an understanding, that we may know Him who is true; and we are in Him who is true, in His Son Jesus Christ. This is the true God and eternal life.”

If you do not believe Jesus’ words -- you are not in Christ, and according to John’s word inspired by God, the Holy Spirit you do not possess eternal life and are under the influence of the wicked one

Christ was both God (who came from heaven) and man (took on flesh on earth), two natures as one person, and as it is written great is the mystery of godliness that God was manifested in the flesh." The same revelation Peter received from the Father “You are the Christ, the Son of the living God” (Matt 16:16). 1 Tim.3:16 is the confession of a saved individual.