Ezekiel 40:47

So he measured the court, an hundred cubits long, and an hundred cubits broad, foursquare; and the altar that was before the house.

The court was square, measuring one hundred cubits long and one hundred cubits broad. The altar stood within it before the house. That sizing of the court belonged to a thorough measuring of the whole building, where every part was taken and recorded according to the measuring reed.