in this case consider, 1st, the necessity for hastening the work repeatedly pointed out by Nehemiah; 2nd, the zeal and relatively very large number of builders - the whole community, both the inhabitants of Jerusalem and the men of Jericho, Tekoa, Gibeon, Mizpah, etc. having combined their efforts; 3rd, that the kind of exertion demanded by such laborious work and unintermitted watchfulness as are described Neh 4, though it might be continued for fifty-two days, could scarcely endure during a longer period; and lastly, the amount of the work itself, which must not be regarded as the rebuilding of the whole wall, but only as the restoration of those portions that had been destroyed, the repair of the breaches (Neh 1:3; Neh 2:13; Neh 6:1), and of the ruined gates, - a large portion of wall and at least one gate having remained uninjured.). To this must be added that the material, so far as stone was concerned, was close at hand, stone needing for the most part to be merely brought out of the ruins; besides which, materials of all kind might have been collected and prepared beforehand. It is, moreover, incorrect to compute the extent of this fortified wall by the extent of the wall of modern Jerusalem.
Verse 16
The news that the wall was finished spread fear among the enemies, viz., among the nations in the neighbourhood of Jerusalem (comp. Neh 4:1; Neh 5:9); they were much cast down, and perceived “that this work was effected with the help of our God.” The expression בעניהם יפּלוּ occurs only here, and must be explained according to פּניו יפּלוּ, his countenance fell (Gen 4:5), and לב יפּל, the heart fails (i.e., the courage) (1Sa 17:32): they sank in their own eyes, i.e., they felt themselves cast down, discouraged.
To this Nehemiah adds the supplementary remark, that in those days even nobles of Judah were in alliance and active correspondence with Tobiah, because he
