Nehemiah 12:45-47

45And both the singers and the porters kept the charge of their God, and the charge of the purification, according to the commandment of David, and of Solomon his son. 46For in the days of David and Asaph of old there were leaders of the singers, and songs of praise and thanksgiving to God. 47And all Israel in the days of Zerubbabel, and in the days of Nehemiah, gave the portions of the singers and the porters, every day his portion: and they sanctified holy things to the Levites; and the Levites sanctified them to the children of Aaron.1