Leviticus 18:17 CPDV

¹⁵  You shall not uncover the nakedness of your daughter-in-law, for she is your son's wife; neither shall you expose her dishonor.

¹⁶  You shall not uncover the nakedness of your brother's wife; for it is the nakedness of your brother.

¹⁷  You shall not uncover the nakedness of your wife and her daughter. You shall not take her son's daughter or her daughter's daughter, so as to uncover her dishonor; for they are her flesh, and such sexual intercourse is incest.

¹⁸  You shall not take your wife's sister as a rival mistress; nor shall you uncover her nakedness, while your wife is still living.

¹⁹  You shall not approach a woman who is undergoing menstruation, nor shall you uncover her foulness.