Hebrews 9:3-8

and after the second veil, the tabernacle which is called the holy of holies,

Revelation 21:16

And the city lieth foursquare, and its length is as great as its breadth. And he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal.

Treasury of Scripture Knowledge

Summary

So he measured the length thereof, twenty cubits; and the breadth, twenty cubits, before the temple: and he said unto me, This is the most holy place.

Twenty cubits

Bible References

Twenty cubits

Revelation 21:16
And the city lieth foursquare, and its length is as great as its breadth. And he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal.

This

Hebrews 9:3
and after the second veil, the tabernacle which is called the holy of holies,