I guess we're going to squabble about who Mary is for the Orthodox and Catholic belief that she is the Mother of God?
Jesus is the Logos, the Word of God.
John 1:1 NKJV
In the beginning was the Word, and the Word was with God and the Word was God.
Jesus is the Word of God and through Jesus everything we see in Creation was made as spoken by God. The Logos has no mother as He was there in the beginning.
John 1:14-15 NKJV
14 And the Word became 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. 15 John bore witness of Him and cried out, saying, “This was He of whom I said, ‘He who comes after me is preferred before me, for He was before me.’”
Jesus Christ came in human form to be the Testator of the New Testament through a virgin birth. The Logos became flesh and dwelt among us. So for the human form of the Logos, He was born of the virgin Mary (not a perpetual virgin nor is she sinless) and the Spirit of God. He assumed human form and experienced all of the temptations and resisted as the only Man able to fulfill the entirety of the Law and for the ability to be our High King and Priest. As there was a 1st Adam who brought sin and death (of anything) into the world, the 2nd Adam came to reconcile mankind back to God from the fall in the Garden.
The Logos becoming flesh does not give God a mother. Why? Because Jesus is still the Logos who has existed since the beginning of existence. Mary is the mother of Jesus in human form, but to call her Mother of God is not biblical. Ie the concept of Theotokos which by direct definition as "God-bearer," "Birth-Giver of God," and "the one who gives birth to God as literal translation and the more loosely held translation as "Mother of God" are all inaccurate as God has no mother. She gave birth to the Logos/Word in human form, but she was not the mother of God as that would place her before God in the beginning which is inaccurate and unscriptural.