15 Saul answered, “The soldiers brought them from the Amalekites; they spared the best of the sheep and cattle to sacrifice to the LORD your God, but we totally destroyed the rest.”

Read 1 Samuel 15:15 Using Other Translations

And Saul said, They have brought them from the Amalekites: for the people spared the best of the sheep and of the oxen, to sacrifice unto the LORD thy God; and the rest we have utterly destroyed.
Saul said, "They have brought them from the Amalekites, for the people spared the best of the sheep and of the oxen to sacrifice to the LORD your God, and the rest we have devoted to destruction."
“It’s true that the army spared the best of the sheep, goats, and cattle,” Saul admitted. “But they are going to sacrifice them to the LORD your God. We have destroyed everything else.”