1 Samuel 23:7-9

7Someone told Saul that David was now at Keilah. Saul said, ‘God has now put David under my power. David has gone into a town that has high walls and strong gates. He will not be able to leave that place.’

8So Saul called his army to join him. They prepared to go to Keilah and to attack David and his men.

9Somebody told David that Saul was preparing to attack him. David said to Abiathar the priest, ‘Bring the ephod here.’