John 1: 1-3 In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made.
The name Jesus is translated from the Hebrew Jehoshua and it means God is salvation, this name only existed after his birth, before that there was no Jesus. This does not mean that he did not exist before time, he existed but not as Jesus. He was called the Word of God, he was the voice which proceeded from the Throne of the Almighty. That Voice became Jesus, that voice which spoke during creation, that voice that spoke to Adam, that voice that said Let us make man in our own image became Jesus. He is dressed in a robe dipped in blood, and his name is the Word of God. (Revelation 19:13). John 1:1 says; He is dressed in a robe dipped in blood, and his name is the Word of God.
Jesus is the Word made flesh, John 1:14 says, So the Word became human and made his home among us. He was full of unfailing love and faithfulness. And we have seen his glory, the glory of the Father's one and only Son. if for example your name is John and you have a mouth that speaks and you say to somebody, come here will that person say the words in his mouth called me or say John called me. This means John and his words are one person, they cannot be separated. Now when God the Father speaks, what comes out of his mouth is God, you cannot say the Words that came out of God said, you will God said.
The birth of Jesus meant the Word of God which is God came to dwell in the human body, this means the man Jesus was himself God because he was the Word made flesh. Jesus was in the Father before he came, for him to come to earth he came out of the Father. God is one, he has one Throne and one image, this is why he said let us make man in our own image, not images. He is 3 persons in one body, if you go to Heaven today you will find one Throne and Jesus is the one seated.