1 Samuel 22:17-18

17And the king said to the guards who stood around him, “Turn around and kill the priests of the Lord, because their loyalty also is with David, and because they knew that he was fleeing and did not inform me.” But the servants of the king were not willing to put out their hands to attack the Lord’s priests.

18So the king said to Doeg, “You turn around and attack the priests.” And Doeg the Edomite turned and attacked the priests, and that day he killed eighty-five men who wore the [priest’s] linen ephod.