'Most Holy Place' in the Bible

He built twenty cubits on the rear part of the house with boards of cedar from the floor to the ceiling; he built them for it on the inside as an inner sanctuary, even as the most holy place.

and the cups and the snuffers and the bowls and the spoons and the firepans, of pure gold; and the hinges both for the doors of the inner house, the most holy place, and for the doors of the house, that is, of the nave, of gold.

Then the priests brought the ark of the covenant of the Lord to its place, into the inner sanctuary of the house, to the most holy place, under the wings of the cherubim.