Leviticus 18:6-18

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. ⁹The nakedness of your sister, either your father’s daughter or your mother’s daughter, whether born at home or born outside, their nakedness you shall not uncover. 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 lewdness. ¹⁸You shall not marry a woman in addition to her sister as a rival while she is alive, to uncover her nakedness.