1 Samuel 22:17-19
17 And the king said to the couriers that stood about him, Turn and put the priests of Jehovah to death; because their hand also is with David, and because they knew when he fled, and did not inform me. But the servants of the king were not willing to put forth their hand to fall on the priests of Jehovah.
18 And the king said to Doeg, Turn thou, and fall on the priests. And Doeg the Edomite turned, and fell on the priests, and put to death that day eighty-five persons who wore the linen ephod.
19 And Nob, the city of the priests, he smote with the edge of the sword, both men and women, infants and sucklings, and oxen, and asses, and sheep, with the edge of the sword.Read full chapter