When the land to the east of the Jordan River had been allocated, Moses gave a special command for the tribes who were to settle there: since the Lord had given the land to them and the other tribes still had to take possession of their lands, these eastern settlers were to participate in the remaining conquest, and help their western brethren.
18 En ce temps-là, je vous donnai cet ordre: L'Eternel, votre Dieu, vous livre ce pays, pour que vous le possédiez. Vous tous, soldats, vous marcherez en armes devant les enfants d'Israël.