This was done by the wise contrivance of Divine Providence, that their sin might be punished, and they awakened and reformed, with as little hazard, and mischief, and reproach as might be; for if the defeat of these caused so great a consternation in Joshua, it is easy to guess what dread, and confusion, and despair it would have caused in the people, if a great host had been defeated.
Related Commentaries of Joshua 7:3
Joshua 7:3
3 And they returned to Joshua, and said unto him, Let not all the people go up; but let about two or three thousand men go up and smite Ai; and make not all the people to labour thither; for they are but few.