Nehemiah 12:45-49

For they performed the worship of their God and the service of purification, together with the singers and the gatekeepers in accordance with the command of David and of his son Solomon.

For in the days of David and Asaph, in ancient times, there were leaders of the singers, songs of praise and songs of thanksgiving to God.

So all Israel in the days of Zerubbabel and Nehemiah gave the portions due the singers and the gatekeepers as each day required, and they set apart the consecrated portion for the Levites, and the Levites set apart the consecrated portion for the sons of Aaron.