Deuteronomy 22
22 Ref If a man be found lying with a woman married to a husband, then they shall both of them die, the man who lay with the woman, and the woman: so shall you put away the evil from Israel.
23 Ref If there be a young lady who is a virgin pledged to be married to a husband, and a man find her in the city, and lie with her;
24 Ref then you shall bring them both out to the gate of that city, and you shall stone them to death with stones; the lady, because she didn't cry, being in the city; and the man, because he has humbled his neighbor's wife: so you shall put away the evil from the midst of you.