Leviticus 18:17
Thou shall not uncover the nakedness of a woman and her daughter. Thou shall not take her son's daughter, or her daughter's daughter, to uncover her nakedness. They are near kinswomen. It is iniquity.
Leviticus 20:14
And if a man takes 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
Cursed be he who lays with his mother-in-law. And all the people shall say, Amen.
Amos 2:7
those who 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 go to the [same] maiden, to profane my holy name.