John Calvin's Bible Commentary
Joshua 17:11
11.And Manasseh had in Issachar, etc How they were so mingled as to possess some cities in the lot of Asher and Issachar, while the tribe of Ephraim dwelt between their limits, it is not easy to divine, unless, perhaps, it was perceived that a more commodious habitation would not be liable to many complaints, (156) or, perhaps, after the whole country had become more certainly known, some change was made on principles of equity in the former partition. This, therefore, seems to have been a new acquisition after it was discovered that the children of Manasseh might occupy a wider extent without loss to others. Nor was the habitation given to them a subjugated one, which they might immediately enjoy, but it was an inheritance treasured up in hope, and founded more upon heavenly promise than on actual possession. And yet their not gaining possession of those cities is attributed to their fault, because the lot assigning it to them was an indubitable pledge of victory. The reason, therefore, why they could not expel the inhabitants was, because they were not fully persuaded in their minds that God is true, and stifled his agency by their own sluggishness. But another crime still less pardonable was committed when, having it in their power easily to destroy all, they not only were slothful in executing the command of God, but, induced by filthy lucre, (157) they preserved those alive whom God had doomed to destruction. For persons, on whom we impose tribute, we in a manner take under our faith and protection. God had appointed them the ministers of his vengeance, and he supplies them with strength to execute it: they not only delay, but deprive themselves of the liberty of acting rightly. It is not strange, therefore, that God severely punished this perverse heartlessness, by making those nations whom they had pardoned in the face of a clear prohibition, to become like thorns to pierce their eyes and pricks to gall their sides.
Here, again, a question arises, How were cities granted to them in the tribe of Asher and Issachar, when the portions of both were as yet unknown? Here, therefore, that which had not yet taken place is related by way of anticipation. Be this as it may, we gather that from ignorance of the localities, single portions were not divided so exactly as not to make it necessary afterwards to correct what had been more or less decided. (158) And we must hold in general, with regard both to the tribe of Ephraim and the others, that many of the cities which they gained were of no account because of the devastation. I doubt not that many ruins here lie buried. On the other hand, we must conclude that in fertile spots, or spots possessed of other advantages, where petty villages only existed, their famous cities were founded. It is certain that Sichem was of sufficient importance to hold both a name and rank, and yet there is no mention of it here. The same is the case with Samaria, which, as is well known, belonged to the same tribe of Ephraim when it was the metropolis of the kingdom of Israel. It is plain, therefore, that each tribe possessed several cities, which are here passed over in silence.