Deuteronomy 22:22-24 New Revised Standard Version (NRSV)
22 If a man is caught lying with the wife of another man, both of them shall die, the man who lay with the woman as well as the woman. So you shall purge the evil from Israel.
23 If there is a young woman, a virgin already engaged to be married, and a man meets her in the town and lies with her, 24 you shall bring both of them to the gate of that town and stone them to death, the young woman because she did not cry for help in the town and the man because he violated his neighbor’s wife. So you shall purge the evil from your midst.