Genesis 20:9

What hast thou done unto us Syriac Peshitto "what have I done unto thee," which suits the second clause rather better.

deeds … that ought not to be done Cf. Genesis 34:7; 2 Samuel 13:12. The moral standard of the heathen king here stands higher than that of Abraham the prophet. There were at Gerar, presumably, no written laws; but the custom of the people, with which was bound up its religion, was more powerful than law. The Code of Hammurabi reflects the moral standard of the most civilized community of the time.