18 Joshua made war a long time with all those kings. 19 There was not a city that made peace with the children of Israel, except the Hivites, the inhabitants of Gibeon. All the others they took in battle. 20 For it was of the Lord to harden their hearts, that they should come against Israel in battle, that He might utterly destroy them, and that they might receive no mercy, but that He might destroy them, as the Lord had commanded Moses. 21 And at that time Joshua came and cut off the Anakim from the mountains: from Hebron, from Debir, from Anab, from all the mountains of Judah, and from all the mountains of Israel; Joshua utterly destroyed them with their cities. 22 None of the Anakim were left in the land of the children of Israel; they remained only in Gaza, in Gath, and in Ashdod. 23 So Joshua took the whole land, according to all that the Lord had said to Moses; and Joshua gave it as an inheritance to Israel according to their divisions by their tribes. Then the land rested from war.
Matthew Henry's Commentary on Joshua 11:18-23
Commentary on Joshua 11:15-23
(Read Joshua 11:15-23)
Never let the sons of Anak be a terror to the Israel of God, for their day to fall will come. The land rested from war. It ended not in a peace with the Canaanites, that was forbidden, but in a peace from them. There is a rest, a rest from war, remaining for the people of God, into which they shall enter, when their warfare is accomplished. That which was now done, is compared with what had been said to Moses. God's word and his works, if viewed together, will be found mutually to set each other forth. If we make conscience of our duty, we need not question the performance of the promise. But the believer must never put off his armour, or expect lasting peace, till he closes his eyes in death; nay, as his strength and usefulness increase, he may expect more heavy trials; yet the Lord will not permit any enemies to assault the believer till he has prepared him for the battle. Christ Jesus ever lives to plead for his people, and their faith shall not fail, however Satan may be permitted to assault them. And however tedious, sharp, and difficult the believer's warfare, his patience in tribulation may be encouraged by the joyfulness of hope; for he will, ere long, rest from sin and from sorrow in the Canaan above.