Leviticus 20:17-19

Young's Literal Translation

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.