Deuteronomy 27:20

"Cursed is the one who lies with his father's wife, because he has uncovered his father's bed.' "And all the people shall say, "Amen!'

Surrounding context

27:19 "Cursed is the one who perverts the justice due the stranger, the fatherless, and widow.' "And all the people shall say, "Amen!'

27:20 "Cursed is the one who lies with his father's wife, because he has uncovered his father's bed.' "And all the people shall say, "Amen!'

27:21 "Cursed is the one who lies with any kind of animal.' "And all the people shall say, "Amen!'

Translation and sources