Ezekiel 40:46

46 and the chamber, whose front [is] northward, [is] for priests keeping charge of the altar: they [are] sons of Zadok, who are drawing near of the sons of Levi unto Jehovah, to serve Him.'

Ezekiel 40:46 In-Context

44 And on the outside of the inner gate [are] chambers of the singers, in the inner court, that [are] at the side of the north gate, and their fronts [are] southward, one at the side of the east gate [hath] the front northward.
45 And he speaketh unto me: `This chamber, whose front [is] southward, [is] for priests keeping charge of the house;
46 and the chamber, whose front [is] northward, [is] for priests keeping charge of the altar: they [are] sons of Zadok, who are drawing near of the sons of Levi unto Jehovah, to serve Him.'
47 And he measureth the court: the length a hundred cubits, and the breadth a hundred cubits, square, and the altar [is] before the house.
48 And he bringeth me in unto the porch of the house, and he measureth the post of the porch, five cubits on this side, and five cubits on that side, and the breadth of the gate, three cubits on this side, and three cubits on that side;
Young's Literal Translation is in the public domain.