We have here a short view given us,
I. Of the tribe of Issachar, whom Jacob had compared to a strong ass, couching between two burdens (Gen 49:14), an industrious tribe, that minded their country business very closely and rejoiced in their tents, Deu 33:18. And here it appears, 1. That they were a numerous tribe; for they had many wives. So fruitful their country was that they saw no danger of over-stocking the pasture, and so ingenious the people were that they could find work for all hands. Let no people complain of their numbers, provided they suffer none to be idle. 2. That they were a valiant tribe, men of might (Ch1 7:2, Ch1 7:5), chief men, Ch1 7:3. Those that were inured to labour and business were of all men the fittest to serve their country when there was occasion, The number of the respective families, as taken in the days of David, is here set down, amounting in the whole to above 145,000 men fit for war. The account, some think, was taken when Joab numbered the people, 2 Sa. 24. But I rather think it refers to some other computation that was made, perhaps among themselves, because it is said (Ch1 27:24) that that account was not inserted in the chronicles of king David, it having offended God.
II. Of the tribe of Benjamin. Some account is here given of this tribe, but much larger in the next chapter. The militia of this tribe scarcely reached to 60,000; but they are said to be mighty men of valour, Ch1 7:7, Ch1 7:9, Ch1 7:11. Benjamin shall ravin as a wolf, Gen 49:27. It was the honour of this tribe that it produced Saul the first king, and more its honour that it adhered to the rightful kings of the house of David when the other tribes revolted. Here is mention (Ch1 7:12) of Hushim the sons of Aher. The sons of Dan are said to be Hushim (Gen 46:23), and therefore some read Aher appellatively, Hushim - the sons of another (that is, another of Jacob's sons) or the sons of a stranger, which Israelites should not be, but such the Danites were when they set up Micah's graven and molten image among them.
III. Of the tribe of Naphtali, Ch1 7:13. The first fathers only of that tribe are named, the very same that we shall find, Gen 46:24, only that Shillem there is Shallum here. None of their descendents are named, perhaps because their genealogies were lost.
IV. Of the tribe of Manasseh, that part of it which was seated within Jordan; for of the other part we had some account before, Ch1 5:23, etc. Of this tribe observe, 1. That one of them married an Aramitess, that is, a Syrian, Ch1 7:14. This was during their bondage in Egypt, so early did they begin to mingle with the nations. 2. That, though the father married a Syrian, Machir, the son of that marriage, perhaps seeing the inconvenience of it in his father's house, took to wife a daughter of Benjamin, Ch1 7:15. It is good for the children to take warning by their father's mistakes and not stumble at the same stone. 3. Here is mention of Bedan (Ch1 7:17), who perhaps is the same with that Bedan who is mentioned as one of Israel's deliverers, Sa1 12:11. Jair perhaps, who was of Manasseh (Jdg 10:3), was the man.

The sons of Benjamin; Bela, and Becher and Jediael - In Gen 46:21, ten sons of Benjamin are reckoned; viz., Bela, Becher, Ashbel, Gera, Naaman, Eri, Rosh, Muppim, Huppim, and Ard. In Num 26:38, etc., five sons only of Benjamin are mentioned, Bela, Ashbel, Ahiram, Shupham, and Hupham: and Ard and Naaman are there said to be the sons of Bela; consequently grandsons of Benjamin. In the beginning of the following chapter, five sons of Benjamin are mentioned, viz., Bela, Ashbel, Aharah, Nohah, and Rapha; where also Addar, Gera, Abihud, Abishua, Naaman, Ahoah, a second Gera, Shephuphan, and Huram, are all represented as grandsons, not sons, of Benjamin: hence we see that in many cases grandsons are called sons, and both are often confounded in the genealogical tables. To attempt to reconcile such discrepancies would be a task as endless as it would be useless. The rabbins say that Ezra, who wrote this book, did not know whether some of these were sons or grandsons; and they intimate also that the tables from which he copied were often defective, and here we must leave all such matters.

And Maachah the wife of Machir bare a son, and she called his name Peresh; and the name of his brother was Sheresh,.... He had both these sons by her:

and his sons were Ulam and Rakem, that is, either the sons of Peresh or Sheresh, the nearest, as Kimchi observes.

OF NAPHTALI. (Ch1 7:13)

Shallum--or Shillem (Gen 46:24).

sons of Bilhah--As Dan and Naphtali were her sons, Hushim, as well as these enumerated in Ch1 7:13, were her grandsons.