Ezekiel 42:5-6

The rooms on the third story were smaller than the ones on the first and second stories because the colonnade on the third story took more room than the colonnades on the first and second stories. The third story colonnade did not rest on the exterior walls that reached down to the ground but on top of second-story rooms. Thus the third story colonnade was set back from the exterior walls rather than flush with the ones below it.