Deuteronomy 27:23 KJV
Cursed be he that lieth with his mother in law. And all the people shall say, Amen.
Deuteronomy 27:23, King James Version
In context
22 Cursed be he that lieth with his sister, the daughter of his father, or the daughter of his mother. And all the people shall say, Amen.
23 Cursed be he that lieth with his mother in law. And all the people shall say, Amen.
24 Cursed be he that smiteth his neighbour secretly. And all the people shall say, Amen.