Ezekiel 40:10-16

10Inside the east gate were three alcoves on each side; the three had the same measurements, and the faces of the projecting walls on each side had the same measurements. 11Then he measured the width of the entrance of the gateway; it was ten cubits and its length was thirteen cubits. 12In front of each alcove was a wall one cubit high, and the alcoves were six cubits square. 13Then he measured the gateway from the top of the rear wall of one alcove to the top of the opposite one; the distance was twenty-five cubits from one parapet opening to the opposite one. 14He measured along the faces of the projecting walls all around the inside of the gateway—sixty cubits. The measurement was up to the portico facing the courtyard. 15The distance from the entrance of the gateway to the far end of its portico was fifty cubits. 16The alcoves and the projecting walls inside the gateway were surmounted by narrow parapet openings all around, as was the portico; the openings all around faced inward. The faces of the projecting walls were decorated with palm trees.