And so it was that all that fell that day, etc. The meaning is not that all the killed were inhabitants of Ai, but that all who lived in i…

And [so] it was, [that] all that fell that day
Partly in the city, and partly in the field, both by the ambush and t…

God, the righteous Judge, had sentenced the Canaanites for their wickedness; the Israelites only executed his doom. None of their conduct can be dr…