So he measured the length thereof, twenty cubits; and the breadth, twenty cubits, before the temple: and he said unto me, This is the most holy place.
So he measured the length thereof - of the holy of holies.
The breadth, twenty cubits, before the temple - i:e., before or in front of the most holy place (so "temple" is used in 1 Kings 6:3, "the perch before the temple of the house"). The angel went in and measured it, while Ezekiel stood in front, in the only part of the temple accessible to him. The dimensions of the two apartments are the same as in Solomon's temple, since, being fixed originally by God, they are regarded as finally determined.