I Samuel 15:7-9

And Saul attacked the Amalekites, from Havilah all the way to Shur, which is east of Egypt. He also took Agag king of the Amalekites alive, and utterly destroyed all the people with the edge of the sword. But Saul and the people spared Agag and the best of the sheep, the oxen, the fatlings, the lambs, and all that was good, and were unwilling to utterly destroy them. But everything despised and worthless, that they utterly destroyed.