'Chambers' in the Bible

The singers, the heads of the Levite families, stayed in the temple chambers and were exempt from other tasks because they were on duty day and night.

“but their duty will be to assist the sons of Aaron with the service of the Lord’s temple, being responsible for the courts and the chambers, the purification of all the holy things, and the work of the service of God’s temple—

The plans contained everything he had in mind for the courts of the Lord’s house, all the surrounding chambers, the treasuries of God’s house, and the treasuries for what is dedicated.