“I'm sorry I made Saul king, for he has given up following me and hasn't done as I ordered.” Samuel was upset, and he cried out to the Lord all through the night.
Saul and his army spared Agag, together with the best sheep and cattle, the fat calves and lambs, and everything else that was any good. They didn't want to destroy those, but they completely destroyed all that was unwanted and worthless.