1 Samuel 30:6-8

6David was in great distress because the people in their bitterness said he should be stoned. (They were thinking of their sons and daughters. But David found strength in the Lord his God.)

7David told the priest Abiathar, Ahimelech’s son, “Please bring me the priestly ephod.”  So Abiathar brought David the ephod.

8Then David asked the Lord, “Should I pursue these troops? Will I catch up with them?” “Pursue them,” the Lord told him. “You will certainly catch up with them and rescue the captives.”