Appreciate your response...but it does not change the truth...per Scripture:
There is no Scripture that even hints of Mary "offering her son as a sacrifice".....
It does teach: For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
I am sorry. I wish I could help you.
Mary knew Isaiah 53, and Jesus would suffer and die. It is hard to realize at what point she knew this, per some definite scripture. Thus it must be taken on faith(And I won't go into this now).
Here is the point. If Mary said to Jesus, not to sacrifice Himself, he would have had to honor her request, as he would be obligated under the Law of Moses to not disobey her. Therefore Mary in accordance with God's Will, allowed the sacrifice of Jesus, by her faith, as expressed in Luke 1.