Why then didn't you obey the voice of Yahweh, but flew on the spoil, and did that which was evil in the sight of Yahweh?"
Saul had formerly been genuinely humble. He had realistically evaluated himself before his anointing (1 Samuel 14:17; cf. 1 Samuel 9:21). Yet when he became king he viewed himself as the ultimate authority in Israel, a view common among ancient Near Eastern monarchs. This attitude led him to disobey the Law of God. God had sent Saul on a mission (1 Samuel 14:18; cf. Matthew 28:19-20), which involved the total extermination of the Amalekites. The Hebrew word translated "sinners" means habitually wicked people (cf. Psalms 1:1; Psalms 1:5), like the Canaanites.