1 Samuel 22:20-22

But one son of Ahimelech the son of Ahitub, named Abiathar, escaped and fled after David. Abiathar told David that Saul had killed the priests of the LORD. Then David said to Abiathar, “I knew on that day, when Doeg the Edomite was there, that he would surely tell Saul. I have brought about the death of every person in your father’s household.