(1) Fear not, neither be thou dismayed.—See Joshua 1:9; Joshua 10:25. In Joshua 1:9, “For the Lord thy God is with thee.” These words indicate the return of Jehovah to the host of Israel, for the prosecution of the war.

Take all the people.—Not merely “two or three thousand,” as before.

Ai.—In Hebrew, Hâ-ai. Ai is intended for one syllable, not two as often sounded in English. It means “the heap” (of ruins apparently). In Joshua 8:28 we read that Joshua made it “an heap for ever” (Tel-ôlâm in Hebrew). Thus its first and last names agree. It is remarked that whereas Palestine is full of “Tels” with other names appended to them (as Tell-es Sultan, and some ten others near Jericho alone), the place called et-Tel by Bethel has no other appendage. It is not the heap of anything, but simply the heap, to this day; and this fact, which is apparently without parallel, seems to fix the site of Ai at et-Tel. (See Note on Joshua 7:2.)

And his land.—The capture of Ai was not simply the capture of a town or fortress, but of the chief town of a territory, the extent of which we are not told. If we knew the circumstances of the time more precisely, we might apprehend the strategical reasons which made it desirable to obtain possession of Ai in particular at this stage of the campaign.

Jos 8:1-28. God Encourages Joshua.

1, 2. The Lord said unto Joshua, Fear not—By the execution of justice on Achan, the divine wrath was averted, the Israelites were reassured, defeat was succeeded by victory; and thus the case of Ai affords a striking example of God's disciplinary government, in which chastisements for sin are often made to pave the way for the bestowment of those temporal benefits, which, on account of sin, have been withdrawn, or withheld for a time. Joshua, who had been greatly dispirited, was encouraged by a special communication promising him (see Jos 1:6; De 31:6-8) success in the next attempt, which, however, was to be conducted on different principles.

take all the people of war with thee, and arise, go up to Ai—The number of fighting men amounted to six hundred thousand, and the whole force was ordered on this occasion, partly because the spies, in their self-confidence, had said that a few were sufficient to attack the place (Jos 7:3), partly to dispel any misgivings which the memory of the late disaster might have created, and partly that the circumstance of the first spoil obtained in Canaan being shared among all, might operate both as a reward for obedience in refraining from the booty of Jericho, and as an incentive to future exertions (De 6:10). The rest of the people, including the women and children, remained in the camp at Gilgal. Being in the plains of Jericho, it was an ascent to Ai, which was on a hill.

I have given into thy hand the king of Ai, and his people, and his city, and his land … lay thee an ambush for the city—God assured Joshua of Ai's capture, but allowed him to follow his own tactics in obtaining the possession.God puts new courage into Joshua; commands him to go and besiege Ai, promising he should take it, Joshua 8:1,2. The stratagem whereby it is taken; it is burnt, Joshua 8:3-22. The king is taken prisoner; the inhabitants are put to the sword; the cattle and goods spoiled; the king is hanged, Joshua 8:23-29. Joshua builds an altar, Joshua 8:30; offers thereon, Joshua 8:31; writes the law on stones, Joshua 8:32. It and its blessings and curses are read before the people, Joshua 8:33-35.

Take all the people of war with thee; partly to strengthen them against those fears which their late defeat had wrought in them; and partly that all of them might be partakers of this first spoil, and thereby be encouraged to proceed in their work. The weak multitude were not to go, because they might have hindered them in the following stratagem; and it was but fit that the military men who run the greatest hazards, should have the precedency and privilege in the spoils.

fear not, neither be thou dismayed; on account of the defeat of his troops he had sent to take Ai:

take all the people of war with thee; all above twenty years of age, which, with the forty thousand of the tribes on the other side Jordan he brought over with him, must make an arm, five hundred thousand men; these Joshua was to take with so much to animate and encourage him, or to terrify the enemy, nor because such a number was necessary for the reduction of Ai, which was but a small city; but that all might have a part in the spoil and plunder of it, which they were denied at Jericho, and chiefly to draw all the men out of the city, seeing such a numerous host approaching:

and arise, go up to Ai; which lay high, and Joshua being now in the plains of Jericho; see Gill on Joshua 7:2,

see, I have given into thy hand the king of Ai, and his people, and his city, and his land; this city, though a small one, had a king over it, as most cities in the land of Canaan had; the number of his people in it were twelve thousand, and his land were the fields about it; all which were given to Joshua by the Lord, and were as sure as if he had them already in his hand.