I cannot debate you from my own opinion only and that was the reason I presented you how God became flesh in
Jn 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.
Jn 1:2 He was with God in the beginning.
Jn 1:14 The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the One and Only, who came from the Father, full of grace and truth.
God in verses 1 and 2 “became flesh” in verse 14. What is so hard to understand here?
Your argument here “Jesus of Nazareth was a man” should be understood as how God became flesh in John 1:14.
Acts 2:22 "Men of Israel listen to this: Jesus of Nazareth was a man accredited by God to you by miracles, wonders and signs, which God did among you through him, as you know."
And if you read these 2 verses it says the same thing.
Ro 1:3 regarding his Son, who as to his human nature was a descendant of David,
Ro 1:4 and who through the Spirit of holiness was declared with power to be the Son of God by his resurrection from the dead: Jesus Christ our Lord.
As human, He/Jesus came from the line of David according to the scriptures in the OT of course and please READ AND UNDERSTAND this, His human genealogy in –Jn 1:14-, in Luke 3:23-38 and in Matthew 1:1-17 we can read that He is related, in the flesh, to Isaac, the half- brother of Ishmael.
In verse 4 of Romans chapter 1 you can read that after the resurrection of the Lord Jesus Christ the Holy Spirit declared Him/Jesus as the Son of God. And in Hebrews 1:8 God the Father, the God of Abraham, Isaac, and Jacob called His Son, the Lord Jesus Christ, as God.
Heb 1:8 But about the Son he says, “Your throne, O God, will last for ever and ever,and righteousness will be the scepter of your kingdom.
Let me ask you, is Ishmael a direct ancestor of Muhammad, or can you trace Muhammad’s genealogy to Ishmael? I don’t think so, because you have no written proof that he was from Ishmael, not at all.