(the people) is to be taken as the subject of the sentence: “The people had set all the host, that was on the north of the city, and its ambuscade on the west of the city.” In the night, namely the night before the army arrived at the north of the town, Joshua went through the midst of the valley, which separated the Israelites from the town, so that in the morning he stood with all the army close before the town.
Verses 14-23
When the king of Ai saw the Israelites, he hurried out in the morning against them to battle at the (previously) appointed place (למּועד, in locum condictum, as in 1Sa 20:35) before the steppe (Arabah, not the valley of the Jordan, but the steppe or desert of Bethaven; see at Jos 7:2), as he knew nothing of the ambuscade behind the town.
Verse 15
But the Israelites let them beat them, and fled along the desert (of Bethaven).
Verses 16-17
And all the people in the town were called together to pursue the Israelites, and were drawn away from the town, so that not a man, i.e., not a single soldier who could take part in the pursuit, remained either in Ai or the neighbouring town of Bethel, and the town stood open behind them. It is evident from Jos 8:17 that the inhabitants of Bethel, which was about three hours' journey from Ai, took part in the battle, probably in consequence of a treaty which the king of Ai had made with them in the expectation of a renewed and still stronger attack on the part of the Israelites. Nothing further is known upon this point; nor can anything be inferred from the fact that the king of Bethel is included in the list of the kings slain by Joshua (Jos 12:16). Consequently, we cannot decide whether the Bethelites came to the help of the Aites
