1 Samuel 28:16-19

But Samuel replied, “Why ask me, since the LORD has left you and has become your enemy? The LORD has done just as he said he would. He has torn the kingdom from you and given it to your rival, David. The LORD has done this to you today because you refused to carry out his fierce anger against the Amalekites. What’s more, the LORD will hand you and the army of Israel over to the Philistines tomorrow, and you and your sons will be here with me. The LORD will bring down the entire army of Israel in defeat.”