Originally Posted by Tj3
On the other hand, to claim that Mary is the mother of God expresses, in essence, 3 heresies:
1) Denial of the Trinity
If one argues that Mary is mother of God by giving birth to Jesus because Jesus is God, then the argument actually also by default says that God is Jesus. The second is a heresy because it omits the truth that God is the Father, Son and Holy Spirit.
2) Denial of the Eternal pre-existence of God
The claim that Mary is mother of God presumes that she pre-existed God. If she is in fact the vessel through whom jesus entered the world in the flesh, it expresses the Biblical truth that the eternal son of God also became man when born of Mary.
3) Exaltation of Mary to Godhood
If Mary was the mother of God, she also had to be God.