Nehemiah 12:28-30

12:28 The singers were also assembled from the district around Jerusalem and from the settlements of the Netophathites 12:29 and from Beth Gilgal and from the fields of Geba and Azmaveth, for the singers had built settlements for themselves around Jerusalem. 12:30 When the priests and Levites had purified themselves, they purified the people, the gates, and the wall.