1 Samuel 22:9-12, 20

Doeg the Edomite, who was standing there with Saul’s officers, said, “I saw the son of Jesse. He came to see Ahimelech son of Ahitub at Nob. Ahimelech prayed to the LORD for David and gave him food and gave him the sword of Goliath the Philistine.” Then the king sent for the priest Ahimelech son of Ahitub and for all of Ahimelech’s relatives who were priests at Nob. And they all came to the king. Saul said to Ahimelech, “Listen now, son of Ahitub.” Ahimelech answered, “Yes, master.”

But Abiathar, a son of Ahimelech, who was the son of Ahitub, escaped. He ran away and joined David.