John Gill Commentary Nehemiah 3:17

"After him repaired the Levites, Rehum the son of Bani. Next unto him repaired Hashabiah, the ruler of half the district of Keilah, for his district." — Nehemiah 3:17 (ASV)

After him repaired the Levites, Rehum the son of Bani
Who was one of them, as he that follows was another:

next unto him repaired Hashabiah, the ruler of the half part of Keilah :
a city of the tribe of Judah, (Joshua 15:4)

in his part ;
either with the men of that part of Keilah under his jurisdiction, or at the expense of that part of it.