Leviticus 20:17-21

¹⁷ 'And a man who taketh his sister, a daughter of his father or daughter of his mother, and he hath seen her nakedness, and she seeth his nakedness: it is a shame; and they have been cut off before the eyes of the sons of their people; the nakedness of his sister he hath uncovered; his iniquity he beareth. ¹⁸ 'And a man who lieth with a sick woman, and hath uncovered her nakedness, her fountain he hath made bare, and she hath uncovered the fountain of her blood,—even both of them have been cut off from the midst of their people. ¹⁹ 'And the nakedness of thy mother's sister, and of thy father's sister, thou dost not uncover; because his relation he hath made bare; their iniquity they bear. ²⁰ 'And a man who lieth with his aunt, the nakedness of his uncle he hath uncovered; their sin they bear; childless they die. ²¹ 'And a man who taketh his brother's wife—it 'is' impurity; the nakedness of his brother he hath uncovered; childless they are.