Leviticus 18:8-10

Complete Jewish Bible

⁸ You are not to have sexual relations with your father’s wife; that is your father’s prerogative. ⁹ You are not to have sexual relations with your sister, the daughter of your father or the daughter of your mother, whether born at home or elsewhere. Do not have sexual relations with them. ¹⁰ You are not to have sexual relations with your son’s daughter or with your daughter’s daughter. Do not have sexual relations with them, because their sexual disgrace will be your own.