And to Judah upon Jordan - It is certain that the tribe of Naphtali did not border on the east upon Judah, for there were several tribes betwixt them. Some think that as these two tribes were bounded by Jordan on the east, they might be considered as in some sort conjoined, because of the easy passage to each other by means of the river; but this might be said of several other tribes as well as of these. There is considerable difficulty in the text as it now stands; but if, with the Septuagint, we omit Judah, the difficulty vanishes, and the passage is plain: but this omission is supported by no MS. hitherto discovered. It is however very probable that some change has taken place in the words of the text, הירדן וביהודה ubihudah haiyarden, "and by Judah upon Jordan." Houbigant, who terms them verba sine re ac sententia, "words without sense or meaning," proposes, instead of them, to read הירדן ובגדות ubigdoth haiyarden, "and by the banks of Jordan;" a word which is used Joshua 3:15, and which here makes a very good sense.
Aznoth-tabor - This place (“ears of Tabor”) was no doubt in the neighborhood of Mount Tabor - probably on the eastern slope; and Hukkok on the western slope.
To Judah upon Jordan - i. e. to the “Havoth-jair” Numbers 32:41, which were on the opposite side of Jordan. Jair, from whom these towns or villages were named, traced his ancestry in the male line through Hezron to Judah Numbers 27:1; and it is likely that he was assisted by large numbers of his kinsmen of that tribe in his rapid conquest of Bashan. Hence, the Havoth-jair were, in all likelihood, largely colonised by Judahites, especially perhaps that portion of them nearest the Jordan. Thus, that part of the river and its valley adjacent to these settlements was spoken of as “Judah upon Jordan,” or more literally “Judah of the Jordan” (compare Numbers 22:1).