Think of it this way. God sent Gabriel to ask Mary to be the Mother of God.
She could have said no.
So in a certain sense God predicated redemption on Mary’s decision to say yes or not.
It was because of Mary’s Yes that CHrist was born and redemption occured.
26In the sixth month, God sent the angel Gabriel to Nazareth, a town in Galilee, 27to a virgin pledged to be married to a man named Joseph, a descendant of David. The virgin’s name was Mary. 28The angel went to her and said, “Greetings, you who are highly favored! The Lord is with you.”
29Mary was greatly troubled at his words and wondered what kind of greeting this might be. 30But the angel said to her, “Do not be afraid, Mary, you have found favor with God. 31***You will be*** with child and give birth to a son, and you are to give him the name Jesus. 32He will be great and will be called the Son of the Most High. The Lord God will give him the throne of his father David, 33and he will reign over the house of Jacob forever; his kingdom will never end.”
34"How will this be," Mary asked the angel, “since I am a virgin?”
35The angel answered, "The Holy Spirit will come upon you, and the power of the Most High will overshadow you. So the holy one to be born will be called the Son of God.
I must be missing something. At what point in this exchange did Gabriel “ask” Mary anything? This conversation was not subject to negotiation. Gabriel never asked Mary anything. He instructed her what “will” happen.