8 lands in the mountains, the western foothills, and the Arabah Valley, on the slopes, and in the wilderness and the Negev desert (lands on which Hittites, Amorites and Canaanites, Perizzites, Hivites, and Jebusites had lived). The kings were:

Matthew Henry's Commentary on Joshua 12:8

Commentary on Joshua 12:7-24

(Read Joshua 12:7-24)

We have here the limits of the country Joshua conquered. A list is given of the kings subdued by Israel: thirty-one in all. This shows how fruitful Canaan then was, in which so many chose to throng together. This was the land God appointed for Israel; yet in our day it is one of the most barren and unprofitable countries in the world. Such is the effect of the curse it lies under, since its possessors rejected Christ and his gospel, as was foretold by Moses, Deuteronomy 29:23. The vengeance of a righteous God, inflicted on all these kings and their subjects, for their wickedness, should make us dread and hate sin. The fruitful land bestowed on his chosen people, should fill our hearts with hope and confidence in his mercy, and with humble gratitude.