Leviticus 18:17-19

Revised Geneva Translation

¹⁷ ‘You shall not uncover the nakedness of the wife and of her daughter. Nor shall you take her son’s daughter, nor her daughter’s daughter, to uncover her nakedness. They are kinsfolk. It is wickedness.

¹⁸ ‘Also, you shall not take a wife with her sister (during her life), to be her rival in uncovering her nakedness upon her.

¹⁹ ‘You shall not also go to a woman to uncover her nakedness as long as she is isolated for her impurity.