We have here a breviate of Joshua's conquests.
I. The limits of the country he conquered. It lay between Jordan on the east and the Mediterranean Sea on the west, and extended from Baal-gad near Lebanon in the north to Halak, which lay upon the country of Edom in the south, v. 7. The boundaries are more largely described, Num 34:2, etc. But what is here said is enough to show that God had been as good as his word, and had given them possession of all he had promised them by Moses, if they would but have kept it.
II. The various kinds of land that were found in this country, which contributed both to its pleasantness and to its fruitfulness, Jos 12:8. There were mountains, not craggy, and rocky, and barren, which are frightful to the traveller and useless to the inhabitants, but fruitful hills, such as put forth precious things (Deu 33:15), which charmed the spectator's eye and filled the owner's hand. And valleys, not mossy and boggy, but covered with corn, Psa 65:13. There were plains, and springs to water them; and even in that rich land there were wildernesses too, or forests, which were not so thickly inhabited as other parts, yet had towns and houses in them, but served as foils to set off the more pleasant and fruitful countries.
III. The several nations that had been in possession of this country - Hittites, Amorites, Canaanites, etc., all of them descended from Canaan, the accursed son of Ham, Gen 10:15-18. Seven nations they are called (Deu 7:1), and so many are there reckoned up, but here six only are mentioned, the Girgashites being either lost or left out, though we find them, Gen 10:16 and Gen 15:21. Either they were incorporated with some other of these nations, or, as the tradition of the Jews is, upon the approach of Israel under Joshua they all withdrew and went into Africa, leaving their country to be possessed by Israel, with whom they saw it was to no purpose to contend, and therefore they are not named among the nations that Joshua subdued.
IV. A list of the kings that were conquered and subdued by the sword of Israel, some in the field, others in their own cities, thirty-one in all, and very particularly named and counted, it should seem, in the order in which they were conquered; for the catalogue begins with the kings of Jericho and Ai, then takes in the king of Jerusalem and the princes of the south that were in confederacy with him, and then proceeds to those of the northern association. Now, 1. This shows what a very fruitful country Canaan then was, which could support so many kingdoms, and in which so many kings chose to throng together rather than disperse themselves into other countries, which we may suppose not yet inhabited, but where, though they might find more room, they could not expect such plenty and pleasure: this was the land God spied out for Israel; and yet at this day it is one of the most barren, despicable, and unprofitable countries in the world: such is the effect of the curse it lies under, since its possessors rejected Christ and his gospel, as was foretold by Moses, Deu 29:23. 2. It shows what narrow limits men's ambition was then confined to. These kings contented themselves with the government, each of them, of one city and the towns and villages that pertained to it; and no one of them, for aught that appears, aimed to make himself master of the rest, but, when there was occasion, all united for the common safety. Yet it should seem that what was wanting in the extent of their territories was made up in the absoluteness of their power, their subjects being all their tenants and vassals, and entirely at their command. 3. It shows how good God was to Israel, in giving them victory over all these kings, and possession of all these kingdoms, and what obligations he hereby laid upon them to observe his statutes and to keep his laws, Psa 105:44, Psa 105:45. Here were thirty-one kingdoms, or seigniories, to be divided among nine tribes and a half of Israel. Of these there fell to the lot of Judah the kingdoms of Hebron, Jarmuth, Lachish, Eglon, Debir, Arad, Libnan, and Adullam, eight in all, besides part of the kingdom of Jerusalem and part of Geder. Benjamin had the kingdoms of Jericho, Ai, Jerusalem, Makkedah, Beth-el, and the nations of Gilgal, six in all. Simeon had the kingdom of Hormah and part of Geder. Ephraim had the kingdoms of Gezer and Tirzah. Manasseh (that half-tribe) had the kingdoms of Tappuah and Hepher, Taanach and Megiddo. Asher had the kingdoms of Aphek and Achshaph. Zebulun had the kingdoms of Lasharon, Shimron-meron, and Jokneam. Naphtali had the kingdoms of Madon, Hazor, and Kedesh. And Issachar had that of Dor. These were some of the great and famous kings that God smote, for his mercy endureth for ever; and gave their land for a heritage, even a heritage unto Israel his servant, for his mercy endureth for ever, Psa 136:17, etc.

From Baal-gad - A repetition of what is mentioned Jos 11:17.

And these are the kings of the country,.... After particularly named, Jos 12:9,

which Joshua and the children of Israel smote on this side Jordan on the west; that is, on the west of Jordan:

from Baalgad, in the valley of Lebanon, even unto the mount Halak,

that goeth up to Seir; of which see Jos 11:17,

which Joshua gave unto the tribes of Israel for a possession,

according to their divisions; as after related in this book.

THE ONE AND THIRTY KINGS ON THE WEST SIDE OF JORDAN, WHICH JOSHUA SMOTE. (Jos. 12:7-24)

Baal-gad . . . even unto . . . Halak--(See on Jos 11:17). A list of thirty-one chief towns is here given; and, as the whole land contained a superficial extent of only fifteen miles in length by fifty in breadth, it is evident that these capital cities belonged to petty and insignificant kingdoms. With a few exceptions, they were not the scenes of any important events recorded in the sacred history, and therefore do not require a particular notice.

Next: Joshua Chapter 13