23 ‘Cursed is he who lies with his mother-in-law.’ All the people shall say, ‘Amen.’
Deuteronomy 27:23 Cross References - WEB
Leviticus 18:17
17 “‘You shall not uncover the nakedness of a woman and her daughter. You shall not take her son’s daughter, or her daughter’s daughter, to uncover her nakedness. They are near kinswomen. It is wickedness.
Leviticus 20:14
14 “‘If a man takes a wife and her mother, it is wickedness. They shall be burned with fire, both he and they, that there may be no wickedness among you.