Revelation 21:16

And the city lies foursquare. The length is as large as the width. He measured the city with the reed, fourteen hundred miles. The length and the width and the height of it are equal.

Ezekiel 48:8-20

The land that you set aside as a special gift for Jehovah will border Judah on the south. It will be forty-three thousand seven hundred and fifty feet wide, and it will be as long as one of the sections of the tribes. It will extend from the eastern border to the western border, and the holy place will be in the middle of it.

Ezekiel 48:35

The city will measure about thirty-one thousand five hundred feet all the way around. From then on the city's name will be: Jehovah Is There.

Treasury of Scripture Knowledge

Summary

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.

Four square

Twelve

Bible References

Four square

Ezekiel 48:17
The city's pastureland will be the same on all four sides, four thousand three hundred and seventy-five feet.

Twelve

Ezekiel 48:8
The land that you set aside as a special gift for Jehovah will border Judah on the south. It will be forty-three thousand seven hundred and fifty feet wide, and it will be as long as one of the sections of the tribes. It will extend from the eastern border to the western border, and the holy place will be in the middle of it.