2 Samuel 15:16, 22-24

So the king and all his household set out at once. He left no one behind except ten of his concubines to look after the palace.

David replied, “All right, come with us.” So Ittai and all his men and their families went along. Everyone cried loudly as the king and his followers passed by. They crossed the Kidron Valley and then went out toward the wilderness. 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.