When God became known to us in the flesh, He neither received the passions of human nature, nor did the Virgin Mary suffer pain, nor was the Holy Spirit diminished in any way, nor was the power of the Most High set aside in any manner, and all this was because all was accomplished by the Holy Spirit. thus the power of the Most High was not abased, and the child was born with no damage whatsoever to the mother’s virginity.

+ St. Gregory of Nyssa