Leviticus 18:7–8

You shall not uncover the nakedness of your father, which is the nakedness of your mother; she is your mother, you shall not uncover her nakedness. You shall not uncover the nakedness of your father’s wife; it is your father’s nakedness.

“ ‘Do not dishonor your father by having sexual relations with your mother. She is your mother; do not have relations with her.

“ ‘Do not have sexual relations with your father’s wife; that would dishonor your father.

You are not to violate the intimacy that belongs to your father and mother. She is your mother; you must not have sexual intercourse with her. You are not to have sex with your father’s wife; she is your father’s family.

You must not expose your father’s nakedness or your mother’s nakedness—she is your mother; you must not expose her nakedness. You must not expose the nakedness of your father’s wife—it is your father’s nakedness.

The nakedness of thy father, or the nakedness of thy mother, shalt thou not uncover: she is thy mother; thou shalt not uncover her nakedness. The nakedness of thy father’s wife shalt thou not uncover: it is thy father’s nakedness.