1 Samuel 30:6-8

6So David was in a serious bind, for the troops were calling for his stoning, for all the troops were bitter of soul, every man for his sons and his daughters. But David strengthened himself in Adonai his God.

7Then David said to Abiathar the kohen son of Ahimelech, “Please bring me the ephod.” So Abiathar brought the ephod to David.

8David inquired of Adonai saying, “Should I pursue after this raiding band? Shall I overtake them?” He answered him, “Pursue! For you will surely overtake and you will surely rescue!”