Ezekiel 40:13

He measured then the gate, the entire width of the gate-buildings or entrance porticoes, from the roof of one little chamber to the roof of another, the entire distance between the outside walls; the breadth was five amid twenty cubits, door against door, literally, "opening against opening,'' that is, the measuring was done straight through the interior, the passage being ten cubits, the total depth of the guard-rooms twelve cubits, and the two outer walls, three cubits.