Ezekiel 42:1, 3, 7-10, 14

Then the shining man brought me northward into the outer court and brought me to the rooms opposite the temple courtyard and opposite the outer wall on the north side.

On one side of the building was the twenty-cubit-wide plaza of the inner courtyard. On the other side was the paved walkway of the outer courtyard. The building itself was three stories high and had balconies.

There was a wall in the outer courtyard, parallel to the rooms, that was fifty cubits long. The wall was like this because the row of rooms along the outer courtyard was fifty cubits long, while the row of rooms that faced the temple was one hundred cubits long. Beneath the rooms there was an entrance facing east so that a person could enter them from the outer court. On the south side of the temple, along the broad wall of the outer court, adjoining the temple courtyard, facing the outer wall there was a building containing rooms, with a passageway in front of them.

When the priests have served inside the temple, they must first take off their priestly garments and leave them in the rooms before going out into the courtyard. Their priestly garments are holy, so they must change their clothes before going near other people.”