The condition which had been made with those tribes we had settled; Numbers 32:1-32. The Lord grant that we may not, like those tribes, set up our rest on this side the land of promise. To go over to fight for the possession of our brethren, and to have no part ourselves would be a painful conclusion. The Rechabites were scribes to the lands of others, but had none of their own. Jeremiah 35:8-9.
Joshua 1:12-18
12 And to the Reubenites, and to the Gadites, and to half the tribe of Manasseh, spake Joshua, saying,
13 Remember the word which Moses the servant of the LORD commanded you, saying, The LORD your God hath given you rest, and hath given you this land.
14 Your wives, your little ones, and your cattle, shall remain in the land which Moses gave you on this side Jordan; but ye shall pass before your brethren armed,b all the mighty men of valour, and help them;
15 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.
16 And they answered Joshua, saying, All that thou commandest us we will do, and whithersoever thou sendest us, we will go.
17 According as we hearkened unto Moses in all things, so will we hearken unto thee: only the LORD thy God be with thee, as he was with Moses.
18 Whosoever he be that doth rebel against thy commandment, and will not hearken unto thy words in all that thou commandest him, he shall be put to death: only be strong and of a good courage.