Except that as it is Written John 1:1 In the beginning (that means Genesis) was the Word, and 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.
Why Mary is not named anywhere in the volume of the book as being 'begotten'. She to fulfill the prophecy came from the tribe of Judah, the king line and the tribe of Levi, the priest line. There were 12 tribes of Israel, each are named.
Read from Luke 1: 26 onward.