1 Samuel 23:7-9

King James Version

⁷ And it was told Saul that David was come to Keilah. And Saul said, God hath delivered him into mine hand; for he is shut in, by entering into a town that hath gates and bars.

⁸ And Saul called all the people together to war, to go down to Keilah, to besiege David and his men.

⁹ And David knew that Saul secretly practised mischief against him; and he said to Abiathar the priest, Bring hither the ephod.