Deuteronomy 22:22, 23-24

If a man is found sleeping with another man’s wife, both must die. Purge that evil from Israel.

If a man comes upon a virgin in town, a girl who is engaged to another man, and sleeps with her, take both of them to the town gate and stone them until they die—the girl because she didn’t yell out for help in the town and the man because he raped her, violating the fiancée of his neighbor. You must purge the evil from among you.