Leviticus 20:10-12

10‘1If there is a man who commits adultery with another man’s wife, one who commits adultery with his friend’s wife, the adulterer and the adulteress must be put to death.

112If there is a man who sleeps with his father’s wife, he has uncovered his father’s nakedness. Both of them must be put to death, they have brought their 3own deaths upon themselves.

124If there is a man who sleeps with his daughter-in-law, both of them must be put to death. They have committed 5incest, and have brought their 6own deaths upon themselves.