11-13. command the people, saying, Prepare you victuals--not manna, which, though it still fell, would not keep; but corn, sheep, and articles of food procurable in the conquered countries.
      for within three days ye shall pass over this Jordan--that is, the third day, according to Hebrew idiom--the time allotted for getting ready before the encampment in Abel-Shittim broke up and they removed to the desert bank of the river where no victuals were available. At the same time Joshua himself convened the two and a half tribes which had settled east of Jordan, to remind them of their promise (Nu 32:1-42) to assist their brethren in the conquest of western Canaan. Their readiness to redeem their pledge and the terms in which they answered the appeal of Joshua displayed to great advantage their patriotic and pious feelings at so interesting a crisis.

JFB.