And to the Reubenites, the Gadites, and the half-tribe of Manasseh Joshua said,
12. And to the Reubenites, etc An inheritance had been granted them beyond the Jordan, on the condition that they should continue to perform military service with their brethren in expelling the nations of Canaan. Joshua therefore now exhorts them to fulfil their promise, to leave their wives, their children, and all their effects behind, to cross the Jordan, and not desist from carrying on...
Joshua, being settled in the government, immediately applies himself to business; not to take state or to take his pleasure, but to further the work of God among, the people over whom God had set him. As he that desires the office of a minister (Ti1 3:1), so he that desires the office of a magistrate, desires a work, a good work; neither is preferred to be idle. I.
Commenting on Joshua 1:10-15
And to the Reubenites, and to the Gadites, and to half the tribe of Manasseh,.... Who were settled on that side Jordan where Israel now were: spake Joshua, saying; as follows.