Saul's servants will not strike the priests of the LORD.
Doeg the Edomite instead kills eighty-five priests and Nob entirely: men, women, children, infants, and livestock (vv. 18–19).
This event fulfills the word of the man of God against Eli's house in 1 Samuel 2:31–33: "the arm of your father's house" cut off, none reaching old age.
Saul, who would not destroy Amalek as the LORD commanded, destroys the LORD's own priests of his own volition.
Abiathar, the lone surviving priest, escapes to David, with David realizing his sin (vv. 20–23).
The last surviving priest of Nob is sheltered under the LORD's anointed, equipping David with the means of inquiring of God, while Saul has now fully stripped himself of the same.