Ezekiel 40:28, 44, 47

Then he brought me to the inner court through the southern gateway; he measured the southern gateway according to these same measurements.

Outside the inner gate were the chambers for the singers in the inner court, one facing south at the side of the northern gateway, and the other facing north at the side of the southern gateway.

And he measured the court, one hundred cubits long and one hundred cubits wide, foursquare. The altar was in front of the temple.