1 Samuel 15:21-23

Then my troops brought in the best of the sheep, goats, cattle, and plunder to sacrifice to the LORD your God in Gilgal.” But Samuel replied, “What is more pleasing to the LORD: your burnt offerings and sacrifices or your obedience to his voice? Listen! Obedience is better than sacrifice, and submission is better than offering the fat of rams. Rebellion is as sinful as witchcraft, and stubbornness as bad as worshiping idols. So because you have rejected the command of the LORD, he has rejected you as king.”