Parallel
Revelation 21:16
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
And the city lieth foursquare, and the length is as large as the breadth: and he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal.
The city lies foursquare, with its width the same as its length. And he measured the city with the rod, and all its dimensions were equal—12,000 stadia (note: 12,000 stadia is approximately 1,380 miles or 2,220 kilometers.) in length and width and height.