Nehemiah 11:23

There was, in fact, a command of the king regarding them, and an ordinance regulating the singers’ daily tasks.

Ezra 6:8-9

I hereby issue a decree concerning what you must do, so that the elders of the Jews can rebuild the house of God:

The cost is to be paid in full to these men out of the royal revenues from the taxes of the region west of the Euphrates River, so that the work will not stop.

1 Chronicles 9:33

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.

Ezra 7:20-24

You may use the royal treasury to pay for anything else needed for the house of your God.

Nehemiah 12:47

So in the days of Zerubbabel and Nehemiah, all Israel contributed the daily portions for the singers and gatekeepers. They also set aside daily portions for the Levites, and the Levites set aside daily portions for the descendants 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
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.
Ezra 6:8
I hereby issue a decree concerning what you must do, so that the elders of the Jews can rebuild the house of God:

The cost is to be paid in full to these men out of the royal revenues from the taxes of the region west of the Euphrates River, so that the work will not stop.
Ezra 7:20
You may use the royal treasury to pay for anything else needed for the house of your God.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.