Leviticus 18:12-17

12You must not have sexual relations with your father’s sister; she is your father’s close relative.

13You must not have sexual relations with your mother’s sister, for she is your mother’s close relative.

14You must not dishonor your father’s brother by approaching his wife to have sexual relations with her; she is your aunt.

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.