1 Samuel 13:13-14

And Samuel said to Saul, Thou hast done foolishly: thou hast not kept the commandment of Jehovah thy God which he commanded thee; for now would Jehovah have established thy kingdom over Israel for ever. But now thy kingdom shall not continue: Jehovah has sought him a man after his own heart, and Jehovah has appointed him ruler over his people; for thou hast not kept what Jehovah commanded thee.