Stoning in the Bible

DO CHRISTIANS believe the Bible to be God’s word? If so, then the Bible says:
Deuteronomy 22:21 Then they shall bring out the damsel (who had committed adultery) to the door of her father's house, and the men of her city shall stone her with stones that she die …
Leviticus 20:10 If … a man … commits adultery with another man's wife … the adulterer and the adulteress shall surely be put to death

Deut 22:24 Then ye shall bring them both (the adulterers) out unto the gate of that city, and ye shall stone them with stones that they die;