25 But now, please forgive my sin and come back with me so that I may worship the Lord ." 26 But Samuel replied, "I will not go back with you! Since you have rejected the Lord 's command, he has rejected you as king of Israel." 27 As Samuel turned to go, Saul tried to hold him back and tore the hem of his robe. 28 And Samuel said to him, "The Lord has torn the kingdom of Israel from you today and has given it to someone else-one who is better than you. 29 And he who is the Glory of Israel will not lie, nor will he change his mind, for he is not human that he should change his mind!" 30 Then Saul pleaded again, "I know I have sinned. But please, at least honor me before the elders of my people and before Israel by coming back with me so that I may worship the Lord your God." 31 So Samuel finally agreed and went back with him, and Saul worshiped the Lord .

32 Then Samuel said, "Bring King Agag to me." Agag arrived full of hope, for he thought, "Surely the worst is over, and I have been spared!" 33 But Samuel said, "As your sword has killed the sons of many mothers, now your mother will be childless." And Samuel cut Agag to pieces before the Lord at Gilgal. 34 Then Samuel went home to Ramah, and Saul returned to his house at Gibeah of Saul. 35 Samuel never went to meet with Saul again, but he mourned constantly for him. And the Lord was sorry he had ever made Saul king of Israel.

Matthew Henry's Commentary on 1 Samuel 15:25-42

Commentary on 1 Samuel 15:24-31

(Read 1 Samuel 15:24-31)

There were several signs of hypocrisy in Saul's repentance. 1. He besought Samuel only, and seemed most anxious to stand right in his opinion, and to gain his favour. 2. He excuses his fault, even when confessing it; that is never the way of a true penitent. 3. All his care was to save his credit, and preserve his interest in the people. Men are fickle and alter their minds, feeble and cannot effect their purposes; something happens they could not foresee, by which their measures are broken; but with God it is not so. The Strength of Israel will not lie.

Commentary on 1 Samuel 15:32-35

(Read 1 Samuel 15:32-35)

Many think the bitterness of death is past when it is not gone by; they put that evil day far from them, which is very near. Samuel calls Agag to account for his own sins. He followed the example of his ancestors' cruelty, justly therefore is all the righteous blood shed by Amalek required. Saul seems unconcerned at the token of God's displeasure which he lay under, yet Samuel mourns day and night for him. Jerusalem was carnally secure while Christ wept over it. Do we desire to do the whole will of God? Turn to him, not in form and appearance, but with sincerity.