John Wesley on Joshua 19:1

Within the inheritance of Judah - This was so ordered by God's providence, partly to fulfil that threatning that he would divide and scatter this tribe in Israel, Gen 49:7, which was hereby done in part, because they had no distinct lot, but were as inmates to Judah; partly, because now upon the more exact survey of the land, it appeared, that the part given to Judah did far exceed the proportion which they needed, or which the other tribes could expect. And this was the least of the tribes, Numb 26:14, and therefore fittest to be put within another tribe.