These are the singers, heads of fathers' [houses] of the Levites, [who lived] in the chambers [and were] free [from other service]; for they were employed in their work day and night.
All Yisra'el in the days of Zerubbavel, and in the days of Nechemyah, gave the portions of the singers and the porters, as every day required: and they set apart [that which was] for the Levites; and the Levites set apart [that which was] for the sons of Aharon.