Leviticus 20:10-12

New Catholic Bible

¹⁰ When a man commits adultery with his neighbor’s wife, the adulterer and the adulteress must be put to death. ¹¹ The man who sleeps with his father’s wife has uncovered the nakedness of his father. They must be put to death; their blood is upon their own heads. ¹² If a man sleeps with his daughter-in-law, both of them must be put to death. They have done something perverse and their blood is upon their own heads.