1 Samuel 23:7-9

7When it was reported to Saul that David had come to Keilah, Saul said, “God has handed him over to me, for he shut himself in by entering a city with double gates and bars.”

8So Saul summoned all the people for war, to go down to Keilah to besiege David and his men.

9But David knew that Saul was plotting evil against him; so he said to 1Abiathar the priest, “2Bring the ephod here.”