until the LORD gives them rest as He has done for you, and your brothers also possess the land that the LORD your God is giving them. Then you may return to the land of your inheritance and take possession of that which Moses the servant of the LORD gave you on the east side of the Jordan.”
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
Until the Lord hath given your brethren rest, as he hath given you,.... Rest from their travels, as they had: and they also have possessed the land which the Lord your God giveth them: are settled in the land of Canaan, as they were on that side Jordan: then ye shall return unto the land of your possession, and enjoy it; the countries of Sihon...
Until the LORD have given your brethren rest, as [he hath given] you, and they also have possessed the land which the LORD your God giveth them: then ye shall return unto the land of your possession, and enjoy it, which Moses the LORD'S servant gave you on this side Jordan toward the sunrising. (i) By your request, but yet by God's secret appointment, .