2 Samuel 15:24-27, 35-36

Zadok and all the Levites also came along, carrying the Ark of the Covenant of God. They set down the Ark of God, and Abiathar offered sacrifices until everyone had passed out of the city. Then the king instructed Zadok to take the Ark of God back into the city. “If the LORD sees fit,” David said, “he will bring me back to see the Ark and the Tabernacle again. But if he is through with me, then let him do what seems best to him.” The king also told Zadok the priest, “Look, here is my plan. You and Abiathar should return quietly to the city with your son Ahimaaz and Abiathar’s son Jonathan.

Zadok and Abiathar, the priests, will be there. Tell them about the plans being made in the king’s palace, and they will send their sons Ahimaaz and Jonathan to tell me what is going on.”