14 And it cometh to pass, when the king of Ai seeth 'it', that hasten, and rise early, and go out do the men of the city to meet Israel for battle, he and all his people, at the appointed season, at the front of the plain, and he hath not known that an ambush 'is' against him, on the rear of the city.
Matthew Henry's Commentary on Joshua 8:14
Commentary on Joshua 8:3-22
(Read Joshua 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.