1 Samuel 15:3-8

Now go and completely destroy the entire Amalekite nation—men, women, children, babies, cattle, sheep, goats, camels, and donkeys.” So Saul mobilized his army at Telaim. There were 200,000 soldiers from Israel and 10,000 men from Judah. Then Saul and his army went to a town of the Amalekites and lay in wait in the valley. Saul sent this warning to the Kenites: “Move away from where the Amalekites live, or you will die with them. For you showed kindness to all the people of Israel when they came up from Egypt.” So the Kenites packed up and left. Then Saul slaughtered the Amalekites from Havilah all the way to Shur, east of Egypt. He captured Agag, the Amalekite king, but completely destroyed everyone else.