Ezekiel 40:47

Outside of the inner gate were rooms for the singers in the inner court, which was at the side of the north gate. They faced toward the south. One at the side of the east gate faced toward the north.

He said to me, “This room, which faces toward the south, is for the priests who perform the duty of the house.

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 the LORD to minister to him.”

Then he brought me to the porch of the house, and measured each post of the porch, five cubits on this side, and five cubits on that side. The width of the gate was three cubits on this side and three cubits on that side.

The length of the porch was twenty cubits and the width eleven cubits, even by the steps by which they went up to it. There were pillars by the posts, one on this side, and another on that side.