And Saul said unto Samuel, Yea, I have obeyed the voice of the LORD, and have gone the way which the LORD sent me, and have brought Agag the king of Amalek, and have utterly destroyed the Amalekites.
God does not change His mind as we do; He wills an alteration in His method when the creature turns away. Saul turned back from following Him through covetousness and partial obedience, and made himself God's enemy. Samuel spent the whole night wrestling with God in prayer for Saul's restoration, grieving not for himself but that any sinner should forfeit God's favor.
AI summary
Commenting on 1 Samuel 15:10-23
And Saul said to Samuel, yea, I have obeyed the voice of the Lord,.... Here Saul breaks in upon Samuel before he had declared all that the Lord had said unto him; for having expostulated with him for not obeying the voice of the Lord, he could not forbear interrupting him, but with the utmost assurance affirms he had obeyed the voice of the Lord...
And Saul said unto Samuel, Yea, I have obeyed the voice of the LORD, and have gone the way which the LORD sent me, and have brought Agag the king of Amalek, and have utterly destroyed the Amalekites. (i) He stands most impudently in his own defence both against God and his own conscience.