Leviticus 18:14-16 Christian Standard Bible (CSB)
14 You are not to violate the intimacy that belongs to[a] your father’s brother by approaching his wife to have sexual intercourse; she is your aunt. 15 You are not to have sexual intercourse with your daughter-in-law. She is your son’s wife; you are not to have sex with her. 16 You are not to have sexual intercourse with your brother’s wife; she is your brother’s family.