Shared ground
Ezekiel 42:5–7 is explaining an architectural detail, not giving a rule for worship. The guide notes that the rooms on the top level are “shorter” than the rooms below (explicit). The text itself gives the reason: “galleries” reduce the available space, and they reduce it more on the upper level than on the lower and middle levels (explicit).
The passage also clarifies the building’s structure: the chambers are stacked in three levels (explicit). Unlike nearby court structures, these rooms do not have “pillars” like those used in the courts (explicit). As a result, the top level ends up narrowed the most as the structure rises “from the ground” (explicit).
Finally, the description adds a boundary marker: an outside wall runs beside the chambers toward the outer court, measured at fifty cubits (explicit). This anchors the rooms within the broader temple layout (inference from the measuring context).
Where interpretation differs (only where needed)
Two main questions create different mental pictures.
First, readers differ on what the “galleries” are. Some take them as exterior walkways or balcony-like corridors running along the face of the chambers. Others picture them more like recessed terraces or structural offsets that “eat into” the upper rooms.
Second, readers differ on how the lack of pillars affects the design. Some think it means the upper stories could not project outward (no column support below), so each level steps back inward, making the uppermost rooms shortest. Others think it indicates an internal support difference that still results in reduced usable room depth on top, but without requiring a clear “step-back” look.
Why the disagreement exists
The text states the cause (galleries; no pillars like the courts) but does not draw a diagram. Terms like “galleries,” “before the chambers,” and “straitened” can be understood in more than one workable way, and the verse compresses several spatial relationships into a few lines.
What this passage clearly contributes
These verses show that Ezekiel’s temple vision includes realistic design constraints: upper levels can be smaller because circulation space and structural support affect what can be built. The vision’s holiness theme is carried partly through ordered space, measured boundaries, and clearly defined precinct lines (inference from the measuring tour and v. 7’s boundary wall), not only through rituals.