Ver. 3. Let about two or three thousand men go up and smite Ai— There was a little presumption in this counsel; Ai was well situated, strong, and guarded by twelve thousand men; so that there was no probability (humanly speaking) of carrying it with two or three thousand men. God, nevertheless, permitted Joshua to listen to this bold piece of advice, and he followed it. Had not this been the case, either the inhabitants of Ai would not have ventured to sally from their city; or if, in going out against the Israelites, they had beaten a more considerable detachment of them, the crime of Achan would have cost the nation too many citizens, and his punishment would have thrown it into too great a consternation.
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.