1 Samuel 30:6-8

And David was greatly distressed, for the people spoke of stoning him, because all the people were bitter in soul, each for his sons and daughters. But David strengthened himself in the LORD his God. And David said to Abiathar the priest, the son of Ahimelech, “Bring me the ephod.” So Abiathar brought the ephod to David. And David inquired of the LORD, “Shall I pursue after this band? Shall I overtake them?” He answered him, “Pursue, for you shall surely overtake and shall surely rescue.”