1 Samuel 23:7-9

7When Saul was told that David went to Keilah, Saul said, “God has delivered him into my hands. He has trapped himself by going into a city which has ⌞a gate with⌟ a double door ⌞held shut by⌟ a bar.”

8So Saul called together all the troops to go to war and blockade Keilah, where David and his men were.

9When David learned that Saul was planning to harm him, he told the priest Abiathar, “Bring the ephod.”