Nehemiah 12:45-47

45They performed the service of their God and the service of purification, along with the singers and gatekeepers, as David and his son Solomon had prescribed.

46For long ago, in the days of David and Asaph, there were heads of the singers and songs of praise and thanksgiving to God.

47So 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 Aaron’s descendants.