Ezekiel 41:2-4

2The width of the entrance was ten cubits and the sides of the entrance were five cubits on each side; and he measured its length, forty cubits, and its width, twenty cubits.

3Then he went inside [the inner sanctuary] and measured each side pillar of the doorway, two cubits, and the doorway, six cubits [high], and the width of the doorway, seven cubits.

4He measured the length [of the interior of the inner sanctuary], twenty cubits, and the width, twenty cubits, opposite the nave (outer sanctuary); and he said to me, “This is the Most Holy Place.”