Ezekiel 42:4-6

Young's Literal Translation

⁴ And at the front of the chambers [is] a walk of ten cubits in breadth unto the inner part, a way of one cubit, and their openings [are] at the north.

⁵ And the upper chambers [are] short, for the galleries contain more than these, than the lower, and than the middle one, of the building;

⁶ for they [are] threefold, and they have no pillars as the pillars of the court, therefore it hath been kept back -- more than the lower and than the middle one -- from the ground.