These were the portions Moses had given them on the plains of Moab beyond the Jordan, east of Jericho.
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
But unto the tribe of Levi Moses gave not any inheritance,.... Neither on the other side Jordan, nor did he order them any in Canaan; but expressly declared they were to have no part in the division of it, though they were his own tribe; which shows him to be a disinterested man, that he faithfully observed the orders and instructions the Lord gave him...
Which Moses did distribute - Moses had settled every thing relative to these tribes before his death, having appointed them to possess the territories of Og king of Bashan, and Sihon king of the Amorites. For particulars on this chapter, the reader, if he judge it of consequence, may consult Calmet.