As for the Jebusites the inhabitants of Jerusalem, the children of Judah could not drive them out: but the Jebusites dwell with the children of Judah at Jerusalem unto this day. The Jebusites dwell - at Jerusalem unto this day - The whole history of Jerusalem, previously to the time of David, is encumbered with many difficulties. Sometimes it is attributed to Judah, sometimes to Benjamin, and it is probable that, being on the frontiers of both those tribes, each possessed a part of it. If the Jebusites were ever driven out before the time of David, it is certain they recovered it again, or at least a part of it - what is called the citadel or strong hold of Zion, (see 2 Samuel 5:7), which he took from them; after which the city fell wholly into the hands of the Israelites. This verse is an additional proof that the book of Joshua was not written after the times of the Jewish kings, as some have endeavored to prove; for when this verse was written, the Jebusites dwelt with the children of Judah, which they did not after the days of David; therefore the book was written before there were any kings in Judea.
It is very likely, not only that many cities have by the lapse of time changed their names or been totally destroyed, (see the note on Joshua 15:1), but that the names of those in the preceding catalogue have been changed also, several of them repeated that should have been mentioned but once, and not a few confounded with the terms by which they are described. But we must not suppose that every repetition of the name is through the carelessness of copyists; for there are often two places which bear the same name, which is frequently the case in England. But besides this, villages are mentioned as being apparently in the tribe of Judah, which afterwards appear to have been in an other tribe. The reason appears to be this: many towns are mentioned which were frontier towns, and when the limits of a tribe are pointed out, such places must necessarily be mentioned, though allotted to a different tribe. This consideration will serve to remove several difficulties which occur in the reading of this and the following Chapter s.
Commentary on the Bible, by Adam Clarke [1831].