If there is one message that resonates throughout the Bible it is that there is one God.
Deuteronomy 6:4 (KJV) – “Hear O Israel: the Lord our God is one Lord.”
Galatians 3:20 (KJV) – “Now a mediator is not a mediator of one, but God is one.”
James 2:19 – “Thou believest that there is one God: thou doest well: the devils also believe, and tremble.
All must believe in one God. Why even the devils believe and tremble. The Godhead can be understood when we rightly divide the word of God.
1 Timothy 3:16 – “And without controversy great is the mystery of godliness, God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory”
This “Mystery of Godliness” that Paul was speaking to Timothy about was not a mystery concerning how three persons of a supposed trinity could be one. Rather it was a mystery concerning how the great God of heaven robed Himself in flesh and dwelt upon mankind.