Mary is the Mother of Jesus Christ. Jesus is God. But Mary was not before Jesus. Mary was part of God's incarnation in that her womb bore the Son of God. But, God is eternally preexistant - therefore, to say Mary is the Mother of God throws unnecessary confusion into the matter. Mary is not Divine. She did not contribute to the Son's divinity. She contributed to His humanity in that He became a man and passed through her womb and birth canal in the normal human way.
Funny, my 10-year old has no problem with the concept that Mary bore Jesus into the world. That the Son and the Father are one, therefore she was actually God's mother here on earth.
Theotokos is often translated as God-Bearer.
But is it a true statement?
"But, God is eternally preexistant - therefore, to say Mary is the Mother of God throws unnecessary confusion into the matter. "
B, why do you say that calling her the Theotokos throws in any kind of confusion, unnecessary or otherwise? Are you suggesting that she gave birth to the human person of Christ and not the divine?
"Mary is not Divine"
The Church has never, ever taught that.
Denying that Mary is the mother of God is not only *more* confusing, it is heresy, for it entails one of three heresies: either (1) the person to whom she gave birth was not divine or (2) she did not give birth to a person but to a nature, or (3) that she didn't give birth. All three are heretical. The first is either the heresy of Arianism or Nestorianism. The second heresy is Nestorianism. And the third heresy is Docetism.
-A8
As I am sure someone already remarked, confusion is NOT to say so. She is a mother to the Whole Person of Christ, -- it is not possible to be a mother of a nature alone. No, she did not pre-exist Christ and she ios not divine; she is however the Mother of God -- see Ephesus.