Leviticus 18:6-19

⁶‘None of you shall approach any blood relative of his to uncover nakedness; I am the Lord. ⁷You shall not uncover the nakedness of your father, that is, the nakedness of your mother. She is your mother; you are not to uncover her nakedness. ⁸You shall not uncover the nakedness of your father’s wife; it is your father’s nakedness. ⁹As for the nakedness of your sister, either your father’s daughter or your mother’s daughter, whether born in the household or born outside the household, you shall not uncover their nakedness. ¹⁰The nakedness of your son’s daughter or your daughter’s daughter, their nakedness you shall not uncover; for their nakedness is yours. ¹¹The nakedness of your father’s wife’s daughter, born to your father, she is your sister; you shall not uncover her nakedness. ¹²You shall not uncover the nakedness of your father’s sister; she is your father’s blood relative. ¹³You shall not uncover the nakedness of your mother’s sister, for she is your mother’s blood relative. ¹⁴You shall not uncover the nakedness of your father’s brother. You shall not approach his wife; she is your aunt. ¹⁵You shall not uncover the nakedness of your daughter-in-law. She is your son’s wife; you shall not uncover her nakedness. ¹⁶You shall not uncover the nakedness of your brother’s wife; it is your brother’s nakedness. ¹⁷You shall not uncover the nakedness of a woman and of her daughter, nor shall you take her son’s daughter or her daughter’s daughter, to uncover her nakedness; they are blood relatives. It is an outrageous sin. ¹⁸And you shall not marry a woman in addition to her sister as a second wife while she is alive, to uncover her nakedness.

¹⁹‘Also you shall not approach a woman to uncover her nakedness during her menstrual impurity.