18 waging war for a long time to accomplish this. 19 No one in this region made peace with the Israelites except the Hivites of Gibeon. All the others were defeated. 20 For the Lord hardened their hearts and caused them to fight the Israelites. So they were completely destroyed without mercy, as the Lord had commanded Moses. 21 During this period Joshua destroyed all the descendants of Anak, who lived in the hill country of Hebron, Debir, Anab, and the entire hill country of Judah and Israel. He killed them all and completely destroyed their towns. 22 None of the descendants of Anak were left in all the land of Israel, though some still remained in Gaza, Gath, and Ashdod. 23 So Joshua took control of the entire land, just as the Lord had instructed Moses. He gave it to the people of Israel as their special possession, dividing the land among the tribes. So the land finally had rest 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.