1 Samuel 15:1-9 - Israel Defeats The Amalekites
1 Then said Samuel unto Saul, "The LORD sent me to anoint thee king over his people Israel. Now therefore obey thou the voice of the words of the LORD. 2 Thus sayeth the LORD of Hosts: 'I have called to remembrance that which Amalek did to Israel; how they lay in wait for them in the way, as they came out of Egypt. 3 Now therefore go and smite the Amalekites, and only destroy ye all that pertaineth unto them, and see thou have no compassion on them. But slay both man and woman, infant and suckling, and ox, sheep, camel and ass.'"
4 And Saul told it the people, and numbered them in Telaim two hundred thousand footmen, and ten thousand men of Judah. 5 And Saul came unto a city of the Amalekites, and fought in a valley. 6 But Saul said unto the Kenites, "Go and depart and get you down from among the Amalekites, lest I destroy you with them, for ye showed mercy with Israel when they came out of Egypt." And the Kenites departed from among the Amalekites.
7 And Saul slew the Amalekites from Havilah to Shur that lieth before Egypt, 8 and took Agag the king of the Amalekites alive, and utterly destroyed all the people with the edge of the sword. 9 But Saul and the people spared Agag, and they left of the sheep and of the oxen and fat things and the lambs and all that was good, and would not destroy them. But all that was nought worth and flaggy, that they destroyed utterly.