Ezekiel 40:46

And the chamber that looks to the north is for the priests that keep the charge of the altar: they are the sons of Sadduc, those of the tribe of Levi who draw near to the Lord to serve him.

And the chamber whose prospect is toward the north is for the priests, the keepers of the charge of the altar: these are the sons of Zadok among the sons of Levi, which come near to the Lord to minister unto him.

The room which faces toward the north is for the priests who perform the duty of the altar. These are the sons of Zadok, who from among the sons of Levi come near to Yahweh to minister to him.”