Ezekiel 40:10

And there were three side rooms on either side of the east gate. The three were of the same size, and the jambs on either side were of the same size.

Inside the east gate were three alcoves on each side; the three had the same measurements, and the faces of the projecting walls on each side had the same measurements.

There were three recesses on each side of the east gate, each with the same measurements, and the jambs on either side also had the same measurements.

There were three guard alcoves on each side of the gateway passage. Each had the same measurements, and the dividing walls separating them were also identical.

And the alcoves of the gate toward the way eastward were three on each side; the same measurements applied to all three of them; and the same measurement applied to the pilaster on each side.

And the little chambers of the gate eastward were three on this side, and three on that side; they three were of one measure: and the posts had one measure on this side and on that side.