Leviticus 20:18-19

Punishments for Sexual Immorality

¹⁸ _j If a man lies with a woman during her menstrual period and uncovers her nakedness, he has made naked her fountain, and she has uncovered the fountain of her blood. Both of them shall be cut off from among their people. ¹⁹ _k You shall not uncover the nakedness of your mother's sister or of your father's sister, for that is to make naked _l one's relative; they shall bear their iniquity.

1. Cross References
   Leviticus 18:19
   You shall not approach a woman to uncover her nakedness while she is in her menstrual uncleanness.
   Leviticus 15:24
   And if any man lies with her and her menstrual impurity comes upon him, he shall be unclean seven days, and every bed on which he lies shall be unclean.
   
2. Cross References
   Leviticus 18:12 - 13
   You shall not uncover the nakedness of your father's sister; she is your father's relative.
   
3. Cross References
   Leviticus 18:6
   None of you shall approach any one of his close relatives to uncover nakedness. I am the Lord.