David said to Avyatar, I knew on that day, when Do'eg the Edomite was there, that he would surely tell Sha'ul: I have occasioned [the death] of all the persons of your father's house.
Yes, for your sake we are killed all day long. We are regarded as sheep for the slaughter.
Avyatar told David that Sha'ul had slain the LORD's Kohanim.