Nehemiah 12:45-47

45They kept the ceremonial functions of their God and the ceremony of the purification according to the command of David and of Solomon his son.

46For of old, in the days of David and Asaph, there were leaders of the singers who sang songs of praise and thanksgiving to God.

47So in the days of Zerubbabel and of Nehemiah, all Israel gave daily portions for the singers and the gatekeepers. They also set apart the portion for the Levites, and the Levites set apart the portion for the sons of Aaron.