Ezekiel 40:28, 44, 47

Then he brought me to the inner court through the south gate, and he measured the south gate. It was of the same size as the others.

On the outside of the inner gateway there were two chambers in the inner court, one at the side of the north gate facing south, the other at the side of the south gate facing north.

And he measured the court, a hundred cubits long and a hundred cubits broad, a square. And the altar was in front of the temple.