Deuteronomy 22:20-22

But if the thing is true, that evidence of virginity was not found in the young woman, then they shall bring out the young woman to the door of her father’s house, and the men of her city shall stone her to death with stones, because she has done an outrageous thing in Israel by whoring in her father’s house. So you shall purge the evil from your midst. “If a man is found lying with the wife of another man, both of them shall die, the man who lay with the woman, and the woman. So you shall purge the evil from Israel.