1 Samuel 15:20-21

Saul said to Samuel, “I have obeyed the voice of the LORD, and have gone on the mission on which the LORD sent me, and have brought back Agag the king of Amalek, and have completely destroyed the Amalekites. But the people took some of the spoil, sheep and oxen, the best of the things [that were] to be totally destroyed, to sacrifice to the LORD your God at Gilgal.”