Ezekiel 41:10

Overview - Ezekiel 41
The measures, parts, chambers, and ornaments of the temple.
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Ezekiel 41:10  (King James Version)
And between the chambers was the wideness of twenty cubits round about the house on every side.

the chambers
As the word rendered chambers is different from that used before, it is supposed there was another row of buildings, parallel with the side chambers, with a passage of twenty cubits between.