1 Samuel 15:21-23

²¹But the people took of the spoil, sheep and oxen, the chief of the devoted things, to sacrifice unto Jehovah thy God in Gilgal. ²²And Samuel said, Hath Jehovah as great delight in burnt-offerings and sacrifices, as in obeying the voice of Jehovah? Behold, to obey is better than sacrifice, and to hearken than the fat of rams. ²³For rebellion is as the sin of witchcraft, and stubbornness is as idolatry and teraphim. Because thou hast rejected the word of Jehovah, he hath also rejected thee from being king.