True repentance never tries to justify itself. The mouth of the true penitent is stopped (see Rom. 3:19). Here Saul reveals his sinful heart by blaming others for his own sins. He was truly the offspring of Adam, who blamed God and Eve, rather than himself for his transgression. Listen closely to the mouth of sinners as you use the Law to bring the knowledge of sin. If you ask, “How many lies have you told in your life?” you will hear, “Everyone lies,” or, “They are only little white lies.” Sinners, like Saul, want to spread the blame on others or trivialize their transgressions. He said “we…destroyed,” but then blames “the people” for what “they” did wrong. The root cause of his problem is revealed when he refers to “your God”—not his own. Idolatry, having our own concept of the nature of God, is at the root of most sins. See 1 Cor. 10:1–14 for an example.
1 Samuel 15:15 And Saul said, “They have brought them from the Amalekites; for the people spared the best of the sheep and the oxen, to sacrifice to the Lord your God; and the rest we have utterly destroyed.”