Moreover the Levites, which were over the thanksgiving Appointed to see that the psalms of thanksgiving were continually sung in the temple, in due time and manner. Also, their brethren were over against them in the watches That is, in the places where they were appointed to stand, and wait, and perform their office, which was to keep the guard of the gates, while the others sung.
Related Commentaries of Nehemiah 12:8
Nehemiah 12:8-9
8 Moreover the Levites: Jeshua, Binnui, Kadmiel, Sherebiah, Judah, and Mattaniah, which was over the thanksgiving,f he and his brethren.
9 Also Bakbukiah and Unni, their brethren, were over against them in the watches.