1 Samuel 22:17-18

Thomson(i) 17 And the king said to the light infantry who stood before him, Go near and put to death the priests of the Lord, because their hand was with David; and because they knew that he was fleeing, and did not inform me. And when the servants of the king refused to lift their hands against the priests of the Lord, 18 the king said to Doek, Turn thou, and fall upon the priests. Thereupon Doek, the Syrian, turned and slew the priests of the Lord that day, three hundred and five men, all wearing an ephod.