1 Samuel 23:7-9

Young's Literal Translation

⁷ And it is declared to Saul that David hath come in to Keilah, and Saul saith, `God hath made him known for my hand, for he hath been shut in, to enter into a city of doors and bar.'

⁸ And Saul summoneth the whole of the people to battle, to go down to Keilah, to lay siege unto David and unto his men.

⁹ And David knoweth that against him Saul is devising the evil, and saith unto Abiathar the priest, `Bring nigh the ephod.'