Ezekiel 40:9-11

Revised Standard Version

⁹ and its jambs, two cubits; and the vestibule of the gate was at the inner end. ¹⁰ And there were three side rooms on either side of the east gate; the three were of the same size; and the jambs on either side were of the same size. ¹¹ Then he measured the breadth of the opening of the gateway, ten cubits; and the breadth of the gateway, thirteen cubits.