twenty cubits
1 Kings 6:20
The inner sanctuary [was] twenty cubits in length, twenty cubits in width, and twenty cubits in height, and he overlaid it with pure gold. He also overlaid the altar with cedar.
2 Chronicles 3:8
Now he made the room of the holy of holies: its length across the width of the house [was] twenty cubits, and its width [was] twenty cubits; and he overlaid it with fine gold, [amounting] to 600 talents.
Revelation 21:16
The city is laid out as a square, and its length is as great as the width; and he measured the city with the rod, fifteen hundred miles; its length and width and height are equal.
Exodus 26:33
"You shall hang up the veil under the clasps, and shall bring in the ark of the testimony there within the veil; and the veil shall serve for you as a partition between the holy place and the holy of holies.
Exodus 26:34
"You shall put the mercy seat on the ark of the testimony in the holy of holies.
Hebrews 9:3-8
Behind the second veil there was a tabernacle which is called the Holy of Holies,
having a golden altar of incense and the ark of the covenant covered on all sides with gold, in which was a golden jar holding the manna, and Aaron's rod which budded, and the tables of the covenant;
and above it [were] the cherubim of glory overshadowing the mercy seat; but of these things we cannot now speak in detail.
Now when these things have been so prepared, the priests are continually entering the outer tabernacle performing the divine worship,
but into the second, only the high priest [enters] once a year, not without [taking] blood, which he offers for himself and for the sins of the people committed in ignorance.
The Holy Spirit [is] signifying this, that the way into the holy place has not yet been disclosed while the outer tabernacle is still standing,