Exodus 20:14

20:14 “You shall not commit adultery.

Leviticus 20:10

20:10 If a man commits adultery with his neighbor’s wife, both the adulterer and the adulteress must be put to death.

Deuteronomy 5:18

5:18 You must not commit adultery.

Deuteronomy 22:22-24

22:22 If a man is caught having sexual relations with a married woman both the man who had relations with the woman and the woman herself must die; in this way you will purge evil from Israel.

22:23 If a virgin is engaged to a man and another man meets her in the city and has sexual relations with her, 22:24 you must bring the two of them to the gate of that city and stone them to death, the young woman because she did not cry out though in the city and the man because he violated his neighbor’s fiancée; in this way you will purge evil from among you.

Proverbs 6:32

6:32 A man who commits adultery with a woman lacks wisdom,

whoever does it destroys his own life.