23 For rebellion is as the sin of divination, and stubbornness is as iniquity and idolatry. Because you have rejected the word of the Lord, he has also rejected you from being king."

24 And Saul said to Samuel, "I have sinned; for I have transgressed the commandment of the Lord and your words, because I feared the people and obeyed their voice. 25 Now therefore, I pray, pardon my sin, and return with me, that I may worship the Lord." 26 And Samuel said to Saul, "I will not return with you; for you have rejected the word of the Lord, and the Lord has rejected you from being king over Israel." 27 As Samuel turned to go away, Saul laid hold upon the skirt of his robe, and it tore. 28 And Samuel said to him, "The Lord has torn the kingdom of Israel from you this day, and has given it to a neighbor of yours, who is better than you. 29 And also the Glory of Israel will not lie or repent; for he is not a man, that he should repent." 30 Then he said, "I have sinned; yet honor me now before the elders of my people and before Israel, and return with me, that I may worship the Lord your God."

Matthew Henry's Commentary on 1 Samuel 15:23-30

Commentary on 1 Samuel 15:10-23

(Read 1 Samuel 15:10-23)

Repentance in God is not a change of mind, as it is in us, but a change of method. The change was in Saul; "He is turned back from following me." Hereby he made God his enemy. Samuel spent a whole night in pleading for Saul. The rejection of sinners is the grief of believers: God delights not in their death, nor should we. Saul boasts to Samuel of his obedience. Thus sinners think, by justifying themselves, to escape being judged of the Lord. The noise the cattle made, like the rust of the silver, James 5:3, witnessed against him. Many boast of obedience to the command of God; but what means then their indulgence of the flesh, their love of the world, their angry and unkind spirit, and their neglect of holy duties, which witness against them? See of what evil covetousness is the root; and see what is the sinfulness of sin, and notice that in it which above any thing else makes it evil in the sight of the Lord; it is disobedience: "Thou didst not obey the voice of the Lord." Carnal, deceitful hearts, like Saul, think to excuse themselves from God's commandments by what pleases themselves. It is hard to convince the children of disobedience. But humble, sincere, and conscientious obedience to the will of God, is more pleasing and acceptable to him than all burnt-offering and sacrifices. God is more glorified and self more denied, by obedience than by sacrifice. It is much easier to bring a bullock or lamb to be burned upon the altar, than to bring every high thought into obedience to God, and to make our will subject to his will. Those are unfit and unworthy to rule over men, who are not willing that God should rule over them.

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.