The chambers were in the thickness of the wall of the court
toward the east
As there were chambers in the northern part of the outward court, some which looked to the north, and others to the south, so likewise some to the east; and these were built on the breadth, as it may be rendered, of the court wall to the east; signifying there will be churches raised in all the northern parts of the world: over against the separate place, and over against the building;
as the other chambers were; (See Gill on Ezekiel 42:1).