Most Christians believe that John 1:1-3 and John 1:14 mean that Jesus was God. I do not believe that those verses mean that Jesus is God. God cannot become a man because God is everlastingly hidden from the eyes of men. We know Jesus was not God because Jesus said that no man has seen God at any time.
John 1:18 No man hath seen God at any time, the only begotten Son, which is in the bosom of the Father, he hath declared him.
God can never be known except through Manifestations of God which are sent by God. God sent Jesus and Jesus manifested God in the flesh.
John 1 King James Version (KJV)
1 In the beginning was the Word, and the Word was with God, and the Word was God.
2 The same was in the beginning with God.
3 All things were made by him; and without him was not any thing made that was made.
The Holy Spirit and the Word are the appearance of God. The Spirit and the Word mean the divine perfections that appeared in Jesus Christ, and these perfections were with God. The Word does not mean the body of Jesus but rather the divine perfections manifested in Jesus. Jesus was like a clear mirror and the divine perfections were visible and apparent in this mirror. Therefore, the Word and the Holy Spirit, which signify the perfections of God, are the divine appearance. This is the meaning of the verse which says: “The Word was with God, and the Word was God.”
John 1:14 And the Word was made 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.
When God sent Jesus, Jesus was “manifested” in the flesh and Jesus dwelt among us. God did not become flesh, but rather the divine perfections of God were manifested in Jesus who came in the flesh and revealed the Word of God to humanity.
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.
You can't get it any plainer than that. God was manifest in the flesh, not incarnated in the flesh. If God had been incarnated in the flesh then God would have become flesh and we would be able to see God; but Jesus said no man has ever seen God.
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John 1 King James Version (KJV)
1 In the beginning was the Word, and the Word was with God, and the Word was God.
2 The same was in the beginning with God.
3 All things were made by him; and without him was not any thing made that was made.
Please note that John 1:2-3 says that all things were made (created) by God. That contradicts what Paul said in Colossians, referring to Jesus as the Creator of all things that are in heaven and on earth.
“For by Him all things were created that are in heaven and that are on earth, visible and invisible, whether thrones or dominions or principalities or powers. All things were created through Him and for Him. And He is before all things, and in Him all things consist.”
Colossians 1:15-18