1 Samuel 22:19 - Ellicott's Commentary On The Whole Bible

Nob, the city of the priests, smote he. — The vengeful king, not content with striking the men, the heads of the priestly houses, in his insane fury proceeded to treat the innocent city where they resided as a city under the ban “cherem,” as though it had been polluted with idolatry and wickedness, and therefore devoted to utter destruction. The only crime of Nob had been that its venerable chief citizen, Ahimelech the priest, had shown kindness to David, whom Saul hated with a fierce mad hate. In 2 Samuel 21:1 we read of a scourge in the form of a famine afflicting Israel during three years. The cause of this God-sent calamity is told us in the Lord’s words: “It was for Saul and his bloody house, because he slew the Gibeonites.” Now, this slaughter of the Gibeonites — evidently a dark crime — is nowhere specially related in the Old Testament books. Was it not this awful sequel to the crime of Gibeah, where the hapless Ahimelech and his eighty-five priests were murdered, that was referred to in the above mentioned passage — the awful sequel when Saul smote Nob, the city of the priests, with the sword? In that terrible catastrophe, were not the Gibeonites, hewers of wood and drawers of water for the Tabernacle (see Joshua 9:21-27), slain? for we read how in the destruction of the ill fated city men, women and children, and all cattle perished. “Only once before had so terrible a calamity befallen the sons of Aaron, and that was when the Philistines destroyed Shiloh. But they were enemies, and had been provoked by the people bringing the Ark to battle; and even then the women and children seem to have escaped. It was left to the anointed king of Israel, who had himself settled the priests at Nob and restored Jehovah’s worship there, to perpetrate an act unparalleled in Jewish history for its barbarity.” — Dean Payne Smith.