Matthew Henry on Joshua 16:1-4
Though Joseph was one of the younger sons of Jacob, yet he was his eldest by his most just and best beloved wife Rachel, was himself his best beloved son, and had been the greatest ornament and support of his family, kept it from perishing in a time of famine, and had been the shepherd and stone of Israel, and therefore his posterity were very much favoured by the lot. Their portion lay in the very heart of the land of Canaan. It extended from Jordan in the east (Jos 16:1) to the sea, the Mediterranean Sea, in the west, so that it took up the whole breadth of Canaan from side to side; and no question the fruitfulness of the soil answered the blessings both of Jacob and Moses, Gen 49:25, Gen…
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Beth-horon the nether - This city was about twelve miles from Jerusalem, on the side of Nicopolis, formerly Emmaus. - Calmet. See the note on Jos 10:10.
John Gill on Joshua 16:4
So the children of Joseph, Manasseh and Ephraim, took their inheritance. As it fell to them by the lot; by Manasseh is meant the half tribe of Manasseh, one half of that tribe having been settled by Moses on the other side Jordan; and next follows an account of the borders of the inheritance of Ephraim in particular, as that of the half tribe of Manasseh is given in Joshua 17:1.
John Calvin on Joshua 16:1–end
And the lot of the children of Joseph fell, etc The sacred writer first states what the lot was which fell to the two children of Joseph, and then describes the lot of Ephraim. It is strange, however, that when the half of the tribe of Manasseh had already been settled beyond the Jordan, more words are employed in describing the remaining half than in describing the whole of the inheritance of the tribe of Ephraim, though the latter was the more populous, and justly claimed for itself a larger territory. But the longer detail given concerning the posterity of Manasseh is owing to particular circumstances. First, the writer repeats how a settlement had been given them without lot in the count…