4 He commanded them, saying, "Behold, you shall lie in ambush against the city, behind the city. Don't go very far from the city, but all of you be ready.
*Minor differences ignored. Grouped by changes, with first version listed as example.
And he commanded them, saying, Behold, ye (b) shall lie in wait against the city, [even] behind the city: go not very far from the city, but be ye all ready:
(b) God would not destroy Ai by a miracle, as Jericho, so that other nations would fear the power and policy of his people.
And he commanded them, saying,.... At the time he sent them away:
behold, ye shall lie in wait against the city, even behind the city; that is, on the west side of it, Joshua 8:9,
go not very far from the city, but be ye all ready; to enter into it, as soon as the forces are drawn out eastward to meet the army of Israel.
behind the city--is rendered (Joshua 8:9), "on the west side of Ai."
Them - The same party last spoken of, even the five thousand mentioned Joshua 8:12, there are only two parties engaged in the taking of Ai, and but one ambush, as plainly appears by comparing Joshua 8:9, with Joshua 8:12, which speaks only of five thousand, who are justly supposed to be a part of those thirty thousand named, Joshua 8:3.
*More commentary available at chapter level.