1 Samuel 23:5-6
5-6David and his men went to Keilah and fought the Philistines. He scattered their cattle, beat them decisively, and saved the people of Keilah. After Abiathar took refuge with David, he joined David in the raid on Keilah, bringing the Ephod with him.
7-8Saul learned that David had gone to Keilah and thought immediately, "Good! God has handed him to me on a platter! He's in a walled city with locked gates, trapped!" Saul mustered his troops for battle and set out for Keilah to lay siege to David and his men.