1 Samuel 15:2-9

2Here is what the Lord of hosts says: ‘I carefully observed how the Amalekites opposed Israel along the way when Israel came up from Egypt.

3So go now and strike down the Amalekites. Destroy everything that they have. Don’t spare them. Put them to death – man, woman, child, infant, ox, sheep, camel, and donkey alike.’”

4So Saul assembled the army and mustered them at Telaim. There were 200,000 foot soldiers and 10,000 men of Judah.

5Saul proceeded to the city of Amalek, where he set an ambush in the wadi.

6Saul said to the Kenites, “Go on and leave! Go down from among the Amalekites! Otherwise I will sweep you away with them! After all, you were kind to all the Israelites when they came up from Egypt.” So the Kenites withdrew from among the Amalekites.

7Then Saul struck down the Amalekites all the way from Havilah to Shur, which is next to Egypt.

8He captured King Agag of the Amalekites alive, but he executed all Agag’s people with the sword.

9However, Saul and the army spared Agag, along with the best of the flock, the cattle, the fatlings, and the lambs, as well as everything else that was of value. They were not willing to slaughter them. But they did slaughter everything that was despised and worthless.