Leviticus 20:17-19

Amplified Bible, Classic Edition

¹⁷ If a man takes his sister, his father’s or his mother’s daughter, and sees her nakedness and she sees his nakedness, it is a wicked and shameful thing; and they shall be cut off in the sight of their people; he has had sexual relations with his sister; he shall bear his iniquity.

¹⁸ And if a man shall lie with a woman having her menstrual pains and shall uncover her nakedness, he has made naked her fountain, and she has uncovered the fountain of her blood; and both of them shall be cut off from among their people.

¹⁹ You shall not uncover the nakedness of your mother’s sister or of your father’s sister, for that is to make naked his close kin; they shall bear their iniquity.