Joshua 18:5

“And they shall divide it into seven parts, etc.] According to the number of the seven tribes not yet settled; and this they were to describe and divide was all the land subdued, or not subdued, only the following excepted: Judah shall abide in their coast on the south; on the south of the land of Canaan, where their lot fell, so that needed not to be measured and described; and this tribe was to retain what they were possessed of, unless it should appear they had too much, and others wanted, and they willing to part with some of it to their brethren, as they afterwards did to the tribes of Simeon and Dan: and the house of Joseph shall abide in their coast on the north; on the north of the…”

“Seven parts - Which were of equal extent or worth: for no tribe was so great, but one of these parts in its full extent would abundantly suffice them; and there was no reason why the portions should be greater or less according as the tribes at present were more or fewer in number, because of the various changes which happened therein successively; it being usual for one tribe to be more numerous than another in one age, which was fewer in the next. And if the several tribes had increased more, and not diminished their numbers by their sins, they might have sent forth colonies, and taken any part of the land, even as far as Euphrates, all which the Lord of the whole earth had given them a…”

“18:5 The remaining land was divided into seven sections, one for each tribe not yet assigned its territory.”

“Judah shall: Jos 15:1-12, Jos 19:1-9 the house: Josh. 16:1-17:18 Joshua 18:6”