KJV:

3 Over against the twenty cubits which were for cubits, and over against the pavement which was for the utter court, was gallery against gallery in three stories.

NASB:

3 Opposite the twenty cubits which belonged to the inner court, and opposite the pavement which belonged to the outer court, was gallery corresponding to gallery in three stories.

This is a very important verse in the prophecy of Ezekiel! This verse is the only time that Ezekiel's prophecy mentions “20 cubits”, and this verse indicates the location of the galleries in the temple complex of the Third Temple.

Until we figured out where this space is located, which has 20 cubits of width, we were not able to correctly determine the length of buildings for the Kohanim and the entire size of the temple complex. A space with a width of 20 cubits is located in the inner court along the western wall of the temple complex, but the level of this space is lower than the height of the rest of the inner court, and it is equal to the height of the pavement in the outer court. Thanks to this, people who are in the inner court near the western wall will be hidden from outsiders by the outer wall.

This space of 20 cubits is used as a place for storing firewood for the altar, a place for storing waste, as well as for other household needs related to the Temple and buildings located in the inner court. Firewood loading and garbage removal is carried out with the help of truck cranes, which drive up to the external wall from the outside. Due to this, for the operation of the temple complex does not require the presence of rear, utility gates.

The second important point in this verse of Ezekiel's prophecy is that we must correct the English translation and remove the extra word: "stories". This word is not in the Hebrew Bible. In fact, it is not about three floors, but about three lines of galleries, when each line of the gallery is perpendicular to the gallery line adjacent to it.

There is one more inaccuracy in the English translation of this verse: the word “against” is appropriate only in the first two cases in this verse, the third time it is more correct to translate it as “face to face”.

From an architectural point of view, these galleries are important, fencing visitors participating in a peaceful meal in the Lord’s House, which has the meaning of communion (the Lord's Supper), from visitors who come to offer sacrifices and pray in front of the House of the Sanctuary.

The roofs of these galleries have solar cells that generate electricity for air conditioners, the cold air from which comes out at the level of visitors' faces, and the water condensed from the air is used for technical needs in buildings.