>>507848596 (OP)They're not infallible.
Mary is of a normal blood line.
She is normal albeit placed into an abnormal position.
Jesus is half the blood of men and half what God has written specifically of his genetic code.
Jesus was good enough to live as the perfect human.
That means he could personify peace because peace is perfect faith in God.
He is the good shepherd meant to show us the way to God, humility before the Lord's mercy.
To forgive so we can be forgiven, so we aren't hypocrites.
So we are saved from hell which is a lesson that we cant make atoms or freewill, neither can the devil.
It all works in a mechanical fashion.