(12) And he took about five thousand men, and set them to lie in ambush . . .--Is this a fresh body, or only a portion of the thirty thousand mentioned in Joshua 8:3? It is, of course, possible that the body of thirty thousand, having closed the communications between Bethel and Ai on the first night, and finding that they were more numerous than was necessary, had rejoined Joshua when he came up, and that a small body of five thousand was told off for the service on the next day. But after carefully studying the natural features of the position by the Ordnance map (of which I have been able to enjoy the advantage at this point of my work), I am inclined to think that both forces were employed--the thirty thousand and the five thousand--and for distinct services. There are two ravines, which come to a head between Beitin (Bethel) and et-Tel (Ai). The body of men who were to fire the town of Ai were posted in the one nearer to Ai. The larger body, whose business was to prevent any interference from the side of Bethel, were posted in the ravine next to that city, where they had been from the first. If it be remembered, as was before observed, that Joshua was attacking a fortified town, which was protected in flank by another town, and that it was necessary to be prepared for all contingencies from the first, the meaning of his movements will be apparent.

Verse 12. - And he took about five thousand men (see above, ver. 3). We must translate had taken. The repetition is quite in the manner of the Hebrew writers. This passage is of course, according to the Jehovist and Elohist theory, "quite irreconeilable" with the rest of the narrative. So we are told that this is a Jehovistic interpolation (Knobel). Of the city. The Masorites and LXX. prefer the reading Ai (i.e., עַי for עִיר.), in the margin of our Bibles, to that in the text, which is followed by the Vulgate and Luther.

8:3-22 Observe Joshua's conduct and prudence. Those that would maintain their spiritual conflicts must not love their ease. Probably he went into the valley alone, to pray to God for a blessing, and he did not seek in vain. He never drew back till the work was done. Those that have stretched out their hands against their spiritual enemies, must never draw them back.And he took about five thousand men, and set them to lie in ambush,.... This was another ambush, as both Jarchi and Kimchi observe; and the latter adds, perhaps he set them nearer the city than the former; though some are of opinion that these are the same ambush spoken of, whose number is here given, being set on the same side of the city; and they suppose that Joshua had with him but thirty thousand men in all, five thousand of which he sent to lie in ambush, and the other twenty five thousand remained with him; but it seems clear that all the men of war were to be taken, and were taken by them, and that out of them thirty thousand were sent by him to lie in wait at first, and now five thousand more:

between Bethel and Ai, on the west side of the city; and though they were on the same side of the city with the first and larger ambush, yet, as Abarbinel observes, they might be set nearer the city and to the army; and he supposes the first ambush was to take the city, and the second little ambush, as he calls it, was placed, that when the men of the city came out, they might make a noise and a stir, and skirmish with them, that so they might not come upon the camp suddenly.