And there was an enlarging, and a winding about still upward to the side chambers: for the winding about of the house went still upward round about the house: therefore the breadth of the house was still upward, and so increased from the lowest chamber to the highest by the midst.

And the side-chambers were broader as they encompassed the house higher and higher; for the encompassing of the house went higher and higher round about the house: therefore the breadth of the house continued upward; and so one went up from the lowest chamber to the highest by the middle chamber .

And there was a broad passage round about, going up by winding stairs, and it led into the upper loft of the temple all round: therefore was the temple broader in the higher parts: and so from the lower parts they went to the higher by the midst.

And for the side-chambers there was an enlarging, and it went round about the house increasing upward; for the surrounding of the house increased upward round about the house; therefore the house had width upward, and so ascended from the lower story to the upper, by the middle one.

And a broad place and a turning place still upwards are to the side-chambers, for the turning round of the house is still upwards all round about the house: therefore the breadth of the house is upwards, and so the lower one goeth up unto the higher by the midst.

And there was an enlarging, and a winding about still upward to the side chambers: for the winding about of the house went still upward round about the house: therefore the breadth of the house was still upward, and so increased from the lowest chamber to the highest by the middle.

The side-rooms became wider as they went higher up the house, by the amount of the space let into the wall up round about the house, because of the inlets in the house; and one went up from the lowest floor by steps to the middle, and from the middle to the upper floor.

And the side-chambers were broader as they wound about higher and higher; for the winding about of the house went higher and higher round about the house; therefore the breadth of the house continued upward; and so one went up from the lowest row to the highest by the middle.

And there was a broad circular path, rising upward by winding, and it led to the cenacle of the temple by a circular course. As a result, the temple was wider in the higher parts. And so, from the lower parts, they rose up to the higher parts, in the center.

An enlarging - The "wall for the side-chambers" had for the ground story its full thickness of five cubits Ezekiel 41:9 - then it was diminished one cubit, so as to form a ledge whereon to rest the beams of the floor of the second story, and again was further diminished one cubit for the floor of the third story. Thus there was an "enlarging" of the second story of the chambers by one cubit, and of the third story by two cubits beyond the breadth of the chambers on the ground-floor.
A winding about still upward - Winding stairs led "upward" from one story to another.
The winding about of the house - A collective expression for the various winding staircases to the side-chambers which extended on the north, west, and south sides.
And so increased - Rather, "and the lowest story was such that one went by the middle story up to the highest." The winding stairs were not visible outside, so that one could not go to the upper story without passing through the middle story.

An enlarging, and a winding about - Perhaps a winding staircase that-widened upward as the inner wall decreased in thickness; this wall being six cubits thick; as high as the first story, five from the floor of the second story to that of the third, and four from the floor to the ceiling of the third story: and thus there was a rest of one cubit in breadth to support the stories. - Newcome.

And there was an enlarging, and a winding about still upward to the side chambers,.... These chambers, as they rose up in stories one above another, were larger and larger; those in the middlemost storey were larger than those in the lower storey by a cubit; so much being taken out of the thickness of the wall, to make the rests or rebatements for the beams of the floor to rest upon, by which so much was gained in breadth for the chambers; and those in the upper storey, for the same reason, were a cubit broader than those in the middle, and two cubits broader than the lowermost; the floor of the first and lower storey was four cubits broad, Ezekiel 41:5 the floor of the second five cubits; and the floor of the third or uppermost six cubits. The wall of the temple at the bottom was six cubits thick, Ezekiel 41:5, at the middlemost storey five cubits; and at the uppermost four: and all this may denote the enlargement of the church of Christ, as it comes nearer the heavenly state; the present state of the church may be signified by the lower storey, where the chambers are narrowest; the state of the church in the latter day glory, or spiritual reign of Christ, by the middlemost, when it will be enlarged; its converts being very numerous, Isaiah 49:19 and the New Jerusalem church state by the uppermost storey; which city or state will be very large, and next to heaven, or the ultimate glory; see Revelation 21:16. The "winding" that went upwards to the side chambers were winding stairs, which went up from one storey to another, higher and higher; see 1-Kings 6:8. The Misnic doctors say (c), that in the second temple these winding stairs went from one side of the temple to the other, from the north east to the northwest; by which they went up to the roofs of these chambers and to the upper room over the sanctuary. These may signify the various afflictions and tribulations, trials and exercises, in which the Lord leads his people, and by which the churches of Christ pass from one state to another:
for the winding about of the house went still upward round about the house: not on the outside, but within; properly round about the chambers, which are here called the house:
therefore the breadth of the house was still upward; became broader and broader, as it rose up higher and higher:
and so increased from the lowest chamber to the highest by the midst; from being only four cubits broad in the lowest storey, it became five cubits in the middlemost, and from thence six cubits in the highest.
(c) Misn. Middot, c. 4. sect. 5.

the breadth . . . so increased from the lowest . . . to the highest--that is, the breadth of the interior space above was greater than that below.

An enlarging - Of the side chambers, so much of breadth added to the chamber, as was taken from the thickness of the wall; that is, two cubits in the uppermost, and one cubit in the middle - most, more than in the lowest chambers. A winding about - Winding stairs, which enlarged as the rooms did, and these run up between each two chambers from the bottom to the top; so there were two doors at the head of each pair of stairs, one door opening into one chamber, and the other into the opposite chamber. For the winding about - These stairs, as they rose in height, enlarged themselves too. Round about - On all sides of the house where these chambers were. The breadth - Of each chamber. Increased - Grew broader by one cubit in every upper chamber. From five in the lowest to six in the middle, and to seven in the highest chamber.