What does 1 Samuel 16:15 mean?
The Lord has sent His Spirit on Israel's next king, David, and has removed His Spirit from Israel's current king, Saul. In exchange, the Lord has sent a harmful spirit to torment Saul (1 Samuel 16:13–14). Most commentators agree this was a demon permitted by God to do its evil, afflicting work in the life of Saul. Saul, for his part, could have repented and turned back to the Lord but did not.Those closest to Saul recognize the presence of this harmful spirit in his life. It is interesting that they recognize the spirit is "from God." In some way, the tormenting spirit sent by the Lord is causing obvious and noticeable distress for the king.