[adiaireton8]

Did the 2nd person of the trinity exist before Mary?

Of course.

-A8

[Blogger]

Then she couldn't have been His mother - AS GOD. She was His mother as MAN. He had no mother as God. She was mother to Him as human. Yet, the divine still existed independent and yet in complete unity with the human. As I said, a mystery.

She is the blessed mother of Jesus. That's what the Bible calls her. To call her mother of God implies that God had a beginning - which is in itself, as You have said, heresy.

G'night