17 Thou shalt not uncover the nakedness of a woman and her daughter, neither shalt thou take her son's daughter, or her daughter's daughter, to uncover her nakedness; for they are her near kinswomen: it is wickedness.
Leviticus 18:17 Cross References - Webster
Leviticus 20:14
14 And if a man shall take a wife and her mother, it is wickedness: they shall be burnt with fire, both he and they: that there be no wickedness among you.
Deuteronomy 27:23
23 Cursed be he that lieth with his mother-in-law: and all the people shall say, Amen.
Amos 2:7
7 That pant after the dust of the earth on the head of the poor, and turn aside the way of the meek: and a man and his father will go in to the same maid, to profane my holy name: