Ezekiel 41:4

And he measured the length of it, twenty cubits, and the breadth, twenty cubits, before the temple. And he said to me, This is the most holy place.

1 Kings 6:20

And inside the oracle was [a space of] twenty cubits in length, and twenty cubits in breadth, and twenty cubits in the height of it. And he overlaid it with pure gold. And he covered the altar with cedar.

Hebrews 9:3-8

And behind the second curtain, the tabernacle called the Holy of holies,

Exodus 26:33-34

And thou shall hang up the veil under the clasps, and shall bring in there within the veil the ark of the testimony. And the veil shall separate to you between the holy place and the most holy.

2 Chronicles 3:8

And he made the most holy house; the length of it, according to the breadth of the house, was twenty cubits, and the breadth of it twenty cubits. And he overlaid it with fine gold, amounting to six hundred talents.

1 Kings 6:5

And against the wall of the house he built stories round about, against the walls of the house round about, both of the temple and of the oracle. And he made side-chambers round about.

1 Kings 6:16

And he built twenty cubits on the hinder part of the house with boards of cedar from the floor to the walls [of the ceiling]. He built [them] for it inside, for an oracle, even for the most holy place.

Revelation 21:16

And the city lies foursquare, and the length of it is as great as the breadth. And he measured the city with the reed, twelve thousand furlongs, the length and the breadth and the height of it being 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.

Bible References

Twenty cubits

1 Kings 6:20
And inside the oracle was [a space of] twenty cubits in length, and twenty cubits in breadth, and twenty cubits in the height of it. And he overlaid it with pure gold. And he covered the altar with cedar.
2 Chronicles 3:8
And he made the most holy house; the length of it, according to the breadth of the house, was twenty cubits, and the breadth of it twenty cubits. And he overlaid it with fine gold, amounting to six hundred talents.
Revelation 21:16
And the city lies foursquare, and the length of it is as great as the breadth. And he measured the city with the reed, twelve thousand furlongs, the length and the breadth and the height of it being equal.

This

Exodus 26:33
And thou shall hang up the veil under the clasps, and shall bring in there within the veil the ark of the testimony. And the veil shall separate to you between the holy place and the most holy.
Hebrews 9:3
And behind the second curtain, the tabernacle called the Holy of holies,