Let’s praise the lord: Deuteronomy 27:22 vs Genesis 20:11-12

Deuteronomy 27:22 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.

Genesis 20:11-12 And Abraham said, Because I thought, Surely the fear of God is not in this place; and they will slay me for my wife’s sake. And yet indeed she is my sister; she is the daughter of my father, but not the daughter of my mother; and she became my wife.”

The word of the Lord; glory be to God. Amen.