Leviticus 20:11-12

Context
20:11 If a man has sexual intercourse with his father’s wife, he has exposed his father’s nakedness. ¹  Both of them must be put to death; their blood guilt is on themselves. ²  20:12 If a man has sexual intercourse with his daughter-in-law, both of them must be put to death. They have committed perversion; ³  their blood guilt is on themselves.

Leviticus 20:17-21

Context

20:17 “‘If a man has sexual intercourse with ⁴  his sister, whether the daughter of his father or his mother, so that he sees her nakedness and she sees his nakedness, it is a disgrace. They must be cut off in the sight of the children of their people. ⁵  He has exposed his sister’s nakedness; he will bear his punishment for iniquity. ⁶  20:18 If a man has sexual intercourse with a menstruating woman and uncovers her nakedness, he has laid bare her fountain of blood and she has exposed the fountain of her blood, so both of them ⁷  must be cut off from the midst of their people. 20:19 You must not expose the nakedness of your mother’s sister and your father’s sister, for such a person has laid bare his own close relative. ⁸  They must bear their punishment for iniquity. ⁹  20:20 If a man has sexual intercourse with his aunt, he has exposed his uncle’s nakedness; they must bear responsibility for their sin, they will die childless. 20:21 If a man has sexual intercourse with ¹⁰  his brother’s wife, it is indecency. He has exposed his brother’s nakedness; ¹¹  they will be childless.