Ezekiel 40:27

Then he measured the width from the front of the lower gate to the front of the exterior of the inner court, one hundred cubits on the east and on the north.

The inner court had a gate opposite the gate on the north as well as the gate on the east; and he measured one hundred cubits from gate to gate.

Then he brought me to the north gate; and he measured it according to those same measurements,

From the outside to the inner gate were chambers for the singers in the inner court, one of which was at the side of the north gate, with its front toward the south, and one at the side of the south gate facing toward the north.

He measured the court, a perfect square, one hundred cubits long and one hundred cubits wide; and the altar was in front of the house.

Then a measuring rod like a staff was given to me, saying, “Get up and measure the sanctuary of God and the altar, and those who worship in it.