“You must not have sexual relations with both a woman and her daughter. You are not to marry her son’s daughter or her daughter’s daughter and have sexual relations with her. They are close relatives; it is depraved.”
Leviticus 18:17 (BSB)
Context Reading
15You must not have sexual relations with your daughter-in-law. She is your son’s wife; you are not to have sexual relations with her. 16You must not have sexual relations with your brother’s wife; that would shame your brother. 17You must not have sexual relations with both a woman and her daughter. You are not to marry her son’s daughter or her daughter’s daughter and have sexual relations with her. They are close relatives; it is depraved. 18You must not take your wife’s sister as a rival wife and have sexual relations with her while your wife is still alive. 19You must not approach a woman to have sexual relations with her during her menstrual period.