1 Samuel 22:10 - Ellicott's Commentary On The Whole Bible

And he enquired of the Lord for him. — This is, however, by no means certain (see below); nothing was said about the Urim and Thummim being brought out and questioned by the high priest on the occasion of David’s visit. It is possible that Doeg was misled here by the fact of the high priest’s going into the sanctuary, where the ephod was, to fetch the sword of Goliath for David. This famous sword was laid up, we know, behind the ephod.