Nehemiah 12:27-31

And at the dedication of the wall of Jerusalem they sought the Levites out of all their places, to bring them to Jerusalem, to keep the dedication with gladness, both with thanksgivings, and with singing, with cymbals, psalteries, and with harps. And the sons of the singers gathered themselves together, both out of the plain country round about Jerusalem, and from the villages of Netophathi; also from the house of Gilgal, and out of the fields of Geba and Azmaveth: for the singers had builded them villages round about Jerusalem. And the priests and the Levites purified themselves, and purified the people, and the gates, and the wall. Then I brought up the princes of Judah upon the wall, and appointed two great companies of them that gave thanks, whereof one went on the right hand upon the wall toward the dung gate