1 Samuel 13:13-14

But Samuel said to Saul, “You have acted foolishly! You have not kept the commandment of the LORD your God, which He commanded you, for the LORD would now have established your kingdom over Israel forever. But now your kingdom shall not endure. The LORD has sought for Himself a man after His own heart, and the LORD has appointed him ruler over His people, because you have not kept what the LORD commanded you.”