The two branches of Joseph's house, Manasseh and Ephraim, forming each a tribe, would have made Israel's family to have been thirteen to have divided Canaan, had not Levi been separated to the Lord; and Reuben and Gad, with half the tribe of Manasseh settling on the other side of Jordan.
Related Commentaries of Joshua 14:3
Joshua 14:3-5
3 For Moses had given the inheritance of two tribes and an half tribe on the other side Jordan: but unto the Levites he gave none inheritance among them.
4 For the children of Joseph were two tribes, Manasseh and Ephraim: therefore they gave no part unto the Levites in the land, save cities to dwell in, with their suburbs for their cattle and for their substance.
5 As the LORD commanded Moses, so the children of Israel did, and they divided the land.