The Trinity is a difficult subject, and has proved divisive in the history of the christian church.  Today it is still so, and yet is so desperately vital to being a Christian.

Naturally, such an important doctrine will be attacked by the enemy of our faith, but,the Sword of God, His Word, defeats the lies of the enemy!!   It is only in the Word of God that we find Truth, so what does the word say?

This study provides a brief but indisputable overview of the verses showing our God is "three in one", the Triune God.

Verses saying Jesus is God:

Hebrews 1:8  God the Father called the Son "God."

Isaiah 9:6  The "child" is called the "Mighty God."

Matthew. 1:23, Isaiah 7:14  Jesus is called Immanuel, which means "God with us."

John. 1:1  Jesus (the "Word") is called "God."

1 Timothy 3:16  Paul said Jesus was God "manifested in the flesh."

Colossians 2:8.9  Paul said Jesus was the "fullness of the Godhead in bodily form.

John. 20:28  Thomas said to Jesus, "my God."

Titus 2:13  Paul called Jesus "the great God."

Philippians 2:5,6  Paul said Jesus didn?t feel it was wrong to be considered "equal with God."

John 5:18  The Jews wanted to kill Jesus because He was "making Himself equal with God."

John 10:30  Jesus said, "I and the Father are one."

Genesis 1:1,  Colossians 1:16 The Bible said God created all things and that Jesus created all things.

Micah 5:2  The messiah (Jesus) had always been in existence.

Isaiah 44:6; Revelation 1:2,8, 11,13  God claimed to be the "First and the Last." So did Jesus. God clearly states that He is the only saviour. The Bible also says Jesus is our saviour.

Verses saying the Father is God:

John. 8:41  "The only Father we have is God Himself."
Ephesians 4:6   "one God and Father of all "

Verses saying the Holy Spirit is God:

Acts 5:3,4   "you have lied to the Holy Spirit you have not lied to men, but to God."
Acts 28:25,26   Referring to Isaiah 6:9,10, Peter said the "Holy Spirit" spoke to the prophet Isaiah. In the book of Isaiah, it says the "Lord" spoke to the prophet Isaiah.
1 Corinthians 3:16   "Don't you know you are God's temple and that God's Spirit lives in you?"

Verses saying there is only one God:

Mark 12:32  "You are right in saying God is one and there is no other but him."
Mark 12:29  "The Lord our God, the Lord is one."
1 Timothy 2:5  "For there is one God ?"
1 Corinthians 8:4  "....and there is no God but one."
Galatians 3:20   "....but God is one."
James 2:19   "You believe there is one God. Good! "
Psalm 86:10   "....you alone are God."
Deuteronomy 6:4,5   "The Lord our God, the Lord is one ?"
Isaiah. 44:8   "Is there another God besides me?"
Isaiah 45:21   "There is no God apart from me ? there is none but me."
Isaiah 45:22  "For I am God and there is no other."
Isaiah 46:9  "I am God, and there is no other"
Isaiah 45:5  "I am the Lord, and there is no other; apart from me there is no God."
Isaiah 45:18  "I am the Lord, and there is no other."
Malachi 2:10  "Did not one God create us?"

Understanding the concept of a 3-in-1 God can be difficult.  This is how I like to consider it.

We as humans are made up of 3 things. The first is flesh (our flesh and bones), the second is emotion and the third is spritual. These three parts make us who we are.

The trinity too is made up of 3 things, God who is like our spiritual side, Jesus who is like our flesh and the Holy Spirit who is like our emotional side.

Considering it this way it was all clear to me.