Nehemiah 11:23

For there was a commandment from the king concerning them, and a settled provision for the singers, as every day required.

Ezra 6:8-9

Moreover I make a decree what ye shall do to these elders of the Jews for the building of this house of God: that of the king's goods, even of the tribute beyond the River, expenses be given with all diligence unto these men, that they be not hindered.

1 Chronicles 9:33

And these are the singers, heads of fathers houses of the Levites, who dwelt in the chambers and were free from other service ; for they were employed in their work day and night.

Ezra 7:20-24

And whatsoever more shall be needful for the house of thy God, which thou shalt have occasion to bestow, bestow it out of the king's treasure-house.

Nehemiah 12:47

And all Israel in the days of Zerubbabel, and in the days of Nehemiah, 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 Aaron.

Treasury of Scripture Knowledge

Summary

For it was the king's commandment concerning them, that a certain portion should be for the singers, due for every day.

Bible References

The king's

1 Chronicles 9:33
And these are the singers, heads of fathers houses of the Levites, who dwelt in the chambers and were free from other service ; for they were employed in their work day and night.
Ezra 6:8
Moreover I make a decree what ye shall do to these elders of the Jews for the building of this house of God: that of the king's goods, even of the tribute beyond the River, expenses be given with all diligence unto these men, that they be not hindered.
Ezra 7:20
And whatsoever more shall be needful for the house of thy God, which thou shalt have occasion to bestow, bestow it out of the king's treasure-house.

American Standard Version Public Domain