Nehemiah 11:23
They were subject to the commands of the king, who provided for the singers daily.
Ezra 6:8-9
Furthermore, I hereby decree what you are to do for the Jewish leaders who are building this Temple of God: you are to pay the expenses of these men out of the king's assets from taxes collected beyond the River so that they are not hindered.
1 Chronicles 9:33
These singers, leaders of ancestral households of the descendants of Levi, were living in the chambers of the Temple. Freed from other service responsibilities, they were on duty day and night.
Ezra 7:20-24
Furthermore, provide from the royal treasury whatever else may be needed for the Temple of your God.
Nehemiah 12:47
All Israel in the time of Zerubbabel and in the time of Nehemiah gave allotments to each of the singers and gate keepers on a daily basis, setting them apart to benefit the descendants of Levi. And the descendants of Levi set them apart to benefit the descendants of Aaron.