Leviticus 18:5-7

New Revised Standard Version, Anglicised Catholic Edition

⁵ You shall keep my statutes and my ordinances; by doing so one shall live: I am the Lord.

⁶ None of you shall approach anyone near of kin to uncover nakedness: I am the Lord. ⁷ 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.