Leviticus 18
NET
18 You must not take a woman in marriage and then marry her sister as a rival wife while she is still alive, to have sexual relations with her.
Darby
18 And thou shalt not take a wife to her sister, to vex her, to uncover her nakedness beside her, during her life.
KJV
18 Neither shalt thou take a wife to her sister, to vex [her], to uncover her nakedness, beside the other in her life [time].
