1 Samuel 15:1-3

One day Samuel said to Saul, “It was the LORD who told me to anoint you as king of his people, Israel. Now listen to this message from the LORD! This is what the LORD of Heaven’s Armies has declared: I have decided to settle accounts with the nation of Amalek for opposing Israel when they came from Egypt. Now go and completely destroy the entire Amalekite nation—men, women, children, babies, cattle, sheep, goats, camels, and donkeys.”