1 Samuel 23:4-7

Once again David inquired of the LORD, and the LORD answered him, “Go down to Keilah, for I am going to give the Philistines into your hand.” So David and his men went to Keilah, fought the Philistines and carried off their livestock. He inflicted heavy losses on the Philistines and saved the people of Keilah. (Now Abiathar son of Ahimelek had brought the ephod down with him when he fled to David at Keilah.) Saul was told that David had gone to Keilah, and he said, “God has delivered him into my hands, for David has imprisoned himself by entering a town with gates and bars.”