Ezekiel 42:1-4

1Then he (the angel) brought me out into the outer courtyard, toward the north; and he led me to the [attached] chamber which was opposite the separate area and opposite the building to the north.

2Along the length, one hundred cubits, was the north door; and the width was fifty cubits.

3Opposite the twenty cubits which belonged to the inner courtyard, and opposite the pavement which belonged to the outer courtyard, was gallery (balcony) corresponding to gallery in three stories.

4In front of the [attached] chambers was an inner walkway ten cubits wide and one hundred cubits long; and their entrances were on the north.