1 Samuel 22:20-23

Only one son of Ahimelech son of Ahitub escaped: Abiathar. He got away and joined up with David. Abiathar reported to David that Saul had murdered the priests of GOD. David said to Abiathar, “I knew it—that day I saw Doeg the Edomite there, I knew he’d tell Saul. I’m to blame for the death of everyone in your father’s family. Stay here with me. Don’t be afraid. The one out to kill you is out to kill me, too. Stick with me. I’ll protect you.”