1 Samuel 15:15

Saul answered, “The troops brought them from the Amalekites; they spared the best sheep and cattle to sacrifice to the LORD your God, but the rest we devoted to destruction.”

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.