Leviticus 18:17-19

New Living Translation

¹⁷ “Do not have sexual relations with both a woman and her daughter. And do not take^[a] her granddaughter, whether her son’s daughter or her daughter’s daughter, and have sexual relations with her. They are close relatives, and this would be a wicked act.

¹⁸ “While your wife is living, do not marry her sister and have sexual relations with her, for they would be rivals.

¹⁹ “Do not have sexual relations with a woman during her period of menstrual impurity.