2 Chronicles 3:8

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

Exodus 26:33

You shall hang up the veil under the clasps, and shall bring the ark of the testimony in there within the veil: and the veil shall separate the holy place from the most holy for you.

1 Kings 6:16

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

1 Kings 6:19-20

He prepared an oracle in the midst of the house within, to set there the ark of the covenant of the LORD.

Hebrews 9:3

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

Hebrews 9:9

which is a symbol of the present age, where gifts and sacrifices are offered that are incapable, concerning the conscience, of making the worshipper perfect;

Hebrews 10:19

Having therefore, brothers, boldness to enter into the holy place 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
You shall hang up the veil under the clasps, and shall bring the ark of the testimony in there within the veil: and the veil shall separate the holy place from the most holy for you.
1 Kings 6:19
He prepared an oracle in the midst of the house within, to set there the ark of the covenant of the LORD.
Hebrews 9:3
After the second veil was the tabernacle which is called the Holy of Holies,
Hebrews 10:19
Having therefore, brothers, boldness to enter into the holy place by the blood of Jesus,