This is what Moses had given to the clans of the tribe of Gad:
24. And Moses gave inheritance unto the tribe of Gad, etc The observation made above applies also to the tribe of Gad, namely, that their legitimate boundaries were carefully defined in order to prevent disputes as to their possession. Meanwhile God is extolled for his liberality in having expelled nations of great celebrity, and substituted them in their stead.
Here we have, I. Orders given to Joshua to assign to each tribe its portion of this land, including that which was yet unsubdued, which must be brought into the lot, in a believing confidence that it should be conquered when Israel was multiplied so as to have occasion for it (Jos 13:7): Now divide this land. Joshua thought all must be conquered before any must be divided.
Commenting on Joshua 13:7-33
And their coast was Jazer,.... Their southern coast; of Jazer, see Num 21:32; where it is called Jaazer, and is mentioned in Isa 16:8; and in Jer 48:32, where it is spoken of as a city of Moab, as it was in the days of those prophets: and all the cities of Gilead; which lay in those parts, for the whole was not given to...