2 Samuel 15:27-30

The king directed Zadok the priest, “Here’s the plan: Return to the city peacefully, with Ahimaaz your son and Jonathan, Abiathar’s son, with you. I’ll wait at a spot in the wilderness across the river, until I get word from you telling us what’s up.” So Zadok and Abiathar took the Chest of God back to Jerusalem and placed it there, while David went up the Mount of Olives weeping, head covered but barefooted, and the whole army was with him, heads covered and weeping as they ascended.