Obedience

The troops took sheep and cattle from the plunder, the best of the things devoted to destruction, in order to sacrifice them to the Lord your God at Gilgal.” But Samuel declared: “Does the Lord delight in burnt offerings and sacrifices as much as in obedience to His voice? Behold, obedience is better than sacrifice, and attentiveness is better than the fat of rams. For rebellion is like the sin of divination, and arrogance is like the wickedness of idolatry. Because you have rejected the word of the Lord, He has rejected you as king.”

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 God, making 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. 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. 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.

Matthew Henry's Concise Commentary (1 Samuel 15)