Ezekiel 40:10

And the little chambers of the gate eastward, in addition to those flanking the entrance, were three on this side and three on that side; they three were of one measure, the same size as those mentioned in verse 7, and the posts, the pillars or half-columns supporting the pediments or the portico, had one measure on this side and on that side. V 11. And He measured the breadth of the entry of the gate, the entire width of the eastern entrance, ten cubits, and the length of the gate, either the height or, more likely, the depth of the gateway, thirteen cubits.