1 Samuel 22:9-12, 20

Then answered Doeg the Edomite, which was set over the servants of Saul, and said, I saw the son of Jesse coming to Nob, to Ahimelech the son of Ahitub. And he enquired of the LORD for him, and gave him victuals, and gave him the sword of Goliath the Philistine. Then the king sent to call Ahimelech the priest, the son of Ahitub, and all his father's house, the priests that were in Nob: and they came all of them to the king. And Saul said, Hear now, thou son of Ahitub. And he answered, Here I am, my lord.

And one of the sons of Ahimelech the son of Ahitub, named Abiathar, escaped, and fled after David.