Leviticus 18:17-19

New King James Version

¹⁷ You shall not uncover the nakedness of a woman and her ^(A)daughter, nor shall you take her son’s daughter or her daughter’s daughter, to uncover her nakedness. They are near of kin to her. It is wickedness. ¹⁸ Nor shall you take a woman ^(B)as a rival to her sister, to uncover her nakedness while the other is alive.

¹⁹ ‘Also you shall not approach a woman to uncover her nakedness as ^(C)long as she is in her ^(D)customary impurity.