Matthew Henry on Nehemiah 3:1–end
The best way to know how to divide this chapter is to observe how the work was divided among the undertakers, that every one might know what he had to do, and mind it accordingly with a holy emulation, and desire to excel, yet without any contention, animosity, or separate interest. No strife appears among them but which should do most for the public good. Several things are observable in the account here given of the building of the wall about Jerusalem: -
I. That Eliashib the high priest, with his brethren the priests, led the van in this troop of builders, Neh 3:1. Ministers should be foremost in every good work; for their office obliges them to teach and quicken by their example, as wel…
Read the whole note in the consoleJamieson-Fausset-Brown on Nehemiah 3:8
they fortified Jerusalem unto the broad wall--or, "double wall," extending from the gate of Ephraim to the corner gate, four hundred cubits in length, formerly broken down by Joash, king of Israel [Ch2 25:23], but afterwards rebuilt by Uzziah [Ch2 26:9], who made it so strong that the Chaldeans, finding it difficult to demolish, had left it standing.
Adam Clarke on Nehemiah 3:9
Ruler of the half part of Jerusalem - Probably the city was divided into two parts; one for Judah, and the other for Benjamin, each having its proper governor. Rephaiah mentioned here was one of these governors, and Shallum, mentioned Neh 3:12, was the other. There were other rulers or governors of particular country or village districts.
John Gill on Nehemiah 3:9
And next unto them repaired Rephaiah, the son of Hur, the ruler of the half part of Jerusalem. That city belonging partly to the tribe of Judah, and partly to the tribe of Benjamin; one part of it was under a governor that was of the tribe of Judah, as this man seems to be; and the other part under one of the tribe of Benjamin; see Nehemiah 3:12.
Keil & Delitzsch