Leviticus 20:8-10 English Standard Version Anglicised (ESVUK)
8 Keep my statutes and do them; I am the Lord who sanctifies you. 9 For anyone who curses his father or his mother shall surely be put to death; he has cursed his father or his mother; his blood is upon him.
Punishments for Sexual Immorality
10 “If a man commits adultery with the wife of[a] his neighbour, both the adulterer and the adulteress shall surely be put to death.