The king of Ai he hanged on a tree He dealt more severely with the kings of Canaan than with the people, because the abominable wickedness of that people was not restrained and punished, (as it ought to have been,) but countenanced and encouraged by their evil examples; and because they were the principal authors of the destruction of their own people, by engaging them in an obstinate opposition against the Israelites. Down from the tree According to God's command in that case, Deuteronomy 21:22. The gate of the city Which place he chose either as most commodious, now especially, when all the city within the gate was already turned into a heap of stones and rubbish; or because this was the usual place of judgment, and therefore proper to bear the monument of God's just sentence against him, not without reflection upon that injustice which he had been guilty of in that place.
Related Commentaries of Joshua 8:29
Joshua 8:29
29 And the king of Ai he hanged on a tree until eventide: and as soon as the sun was down, Joshua commanded that they should take his carcase down from the tree, and cast it at the entering of the gate of the city, and raise thereon a great heap of stones, that remaineth unto this day.