I can’t imagine what would have happened, had She said “No.” It just seems that She just wouldn’t have.
It’s easy looking back to see Mary’s choice as expected or guaranteed. But, there is nothing in history, Scripture or anywhere in our faith that provides the slightest hint that God would take away our free will. I know in my life, God has never prevented me from choosing to sin. I don’t think He prevented Mary from sinning either. She didn’t sin because she chose not to sin.
We don’t know what Mary knew or felt at that moment, but every other human experience in history has been marked by conflicting desires. Certainly, Mary, without concupiscence, would not have had the same desire and tendency to sin that we have, but I can’t believe the choice was easy for her. Adam and Even did not have a fallen nature when they first sinned, and yet, God allowed the sinful desire in them anyway.
If the choice was not hard, there would have been no choice. Yesterday, we discussed in our Christian Formation class with our high schoolers the dark night Mother Teresa experienced, and we looked at it from the perspective of free will. If Mother Teresa had always found joy in her work, and if her desires always led her to serve the poor, what free will would she have had? Her service to God was elevated precisely because she had to overcome the dark night. We will not know in this world the challenges, doubts and fears that tested Mary most. We can see how her experience would have tested us, but how it tempted her, we don’t know. I am confident, though, that she was tested.
What would have happened if Mary said no? More sin, pain and suffering would have been brought into the world. Despite that, I trust God would have continued to love us and would have worked through that sin for our good. Thank you Mary for your yes and thank you God for loving us!