For it was of the LORD to harden their hearts, that they should come against Israel in battle, that he might destroy them utterly, and that they might have no favor, but that he might destroy them, as the LORD commanded Moses.
All Commentaries on Joshua 11:20 Go To Joshua 11
Augustine of Hippo
AD 430
It is said that “their heart was strengthened through the Lord,” that is, that their heart was hardened, just as in the case of Pharaoh. There can be no doubt that this is justly done by a divine and lofty judgment, when God abandons someone and the enemy takes possession of him; the same applies in this case as in Pharaoh’s. But here something else sets in motion, as it is said that their hearts were emboldened to arise against Israel in war and therefore the Israelites would not show any mercy to them. The Israelites may very well have showed them mercy, if the Canaanites had not gone to war, since God had ordered that none of the Canaanites were to be spared and yet the Israelites had spared the Gibeonites because they had represented themselves as having come from a far-off country and had made a treaty with them. But because the Israelites showed mercy to some, albeit against the command of God, it must be understood that it was said with this intention that the Canaanites waged war in such a manner so that the Israelites would not spare them, nor would the Canaanites be able to convince the Israelites to show mercy and neglect God’s command. I cannot believe that this could have happened in any other way, even though Joshua was their leader and diligently obeyed all of God’s commands. Nonetheless, not even Joshua would have annihilated them so quickly had they not gone against him in such a dastardly fashion. Thus it could have happened that Joshua, taking care to fulfill God’s commandments, would have defeated them in a rather minimal way and they would have remained until the time when the Israelites could spare them after Joshua’s death, when the Israelites did not do God’s commandments with such care. For even while he was still alive the Israelites spared some Canaanites, although they subjugated them to their authority; some Canaanites, in fact, they never could conquer. But these things were not done while he was their leader but when as an old man he had retired from warfare and merely divided up the territories for the Israelites. He divided it with the intention that the Israelites would take possession of those lands that were emptied of the enemy and capture the rest by fighting, although he himself would no longer wage war. And the fact that they were able to conquer some of the Canaanites in a rather minimal way was owing to divine providence, as is clear in certain places in the Scriptures.
