Nehemiah 12:27-30

27And at the dedication of the wall of Jerusalem they sought the Levites out of all their places, to bring them to Jerusalem, to hold the dedication with gladness, both with thanksgivings, and with singing, [with] cymbals, lutes and harps.

28And the children of the singers were assembled, both from the plain [of Jordan] round about Jerusalem, and from the villages of the Netophathites,

29also from Beth-Gilgal, and out of the fields of Geba and Azmaveth; for the singers had built themselves hamlets round about Jerusalem.

30And the priests and the Levites purified themselves; and they purified the people, and the gates and the wall.