Ephod: A Sacred Vestment Worn by the High Priest used As an Oracle

When David learned that Saul was plotting evil against him, he said to Abiathar the priest, “Bring the ephod.”

So David asked, “Will the citizens of Keilah surrender me and my men into the hand of Saul?” “They will,” said the LORD.

Then David said to Abiathar the priest, the son of Ahimelech, “Bring me the ephod.” So Abiathar brought it to him,

…and David inquired of the LORD: “Should I pursue these raiders? Will I overtake them?” “Pursue them,” the LORD replied, “for you will surely overtake them and rescue the captives.”