8 And he took Agag the king of the Amalekites alive and devoted to destruction all the people with the edge of the sword. 9 But Saul and the people spared Agag and the best of the sheep and of the oxen and of the fattened calves[1] and the lambs, and all that was good, and would not utterly destroy them. All that was despised and worthless they devoted to destruction.
Matthew Henry's Commentary on 1 Samuel 15:8-9
Commentary on 1 Samuel 15:1-9
(Read 1 Samuel 15:1-9)
The sentence of condemnation against the Amalekites had gone forth long before, Revelation 18:4. As the commandment had been express, and a test of Saul's obedience, his conduct evidently was the effect of a proud, rebellious spirit. He destroyed only the refuse, that was good for little. That which was now destroyed was sacrificed to the justice of God.