2 Chronicles 3:8

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

Exodus 26:33

And thou shalt hang up the veil under the hooks, and thou shalt bring in there, inside the veil, the ark of the testimony; and that veil shall separate for you between the holy place and the holy of holies.

1 Kings 6:16

And he built twenty cubits on the end of the house, both the floor and the walls with boards of cedar; and he built an oracle in the house, which is the holy of holies.

1 Kings 6:19-20

And he prepared the oracle in the house within, to set there the ark of the covenant of the LORD.

Hebrews 9:3

And after the second veil was the tabernacle which is called the Holy of Holies,

Hebrews 9:9

Which was a figure of that time present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience,

Hebrews 10:19

Having therefore, brethren, boldness to enter into the sanctuary by the blood of Jesus,

Treasury of Scripture Knowledge

Summary

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

Bible References

The most holy

Exodus 26:33
And thou shalt hang up the veil under the hooks, and thou shalt bring in there, inside the veil, the ark of the testimony; and that veil shall separate for you between the holy place and the holy of holies.
1 Kings 6:19
And he prepared the oracle in the house within, to set there the ark of the covenant of the LORD.
Hebrews 9:3
And after the second veil was the tabernacle which is called the Holy of Holies,
Hebrews 10:19
Having therefore, brethren, boldness to enter into the sanctuary by the blood of Jesus,