1 Samuel 23:4-7

Then David inquired of the LORD again. And the LORD answered him, “Arise, go down to Keilah, for I will give the Philistines into your hand.” And David and his men went to Keilah and fought with the Philistines and brought away their livestock and struck them with a great blow. So David saved the inhabitants of Keilah. When Abiathar the son of Ahimelech had fled to David to Keilah, he had come down with an ephod in his hand. Now it was told Saul that David had come to Keilah. And Saul said, “God has given him into my hand, for he has shut himself in by entering a town that has gates and bars.”