29 Then Joshua and the Israelites went to Libnah and attacked it. 30 There, too, the Lord gave them the town and its king. He killed everyone in it, leaving no survivors. Then Joshua killed the king of Libnah as he had killed the king of Jericho. 31 From Libnah, Joshua and the Israelites went to Lachish and attacked it. 32 Here again, the Lord gave them Lachish. Joshua took it on the second day and killed everyone in it, just as he had done at Libnah.
Matthew Henry's Commentary on Joshua 10:29-32
Commentary on Joshua 10:28-43
(Read Joshua 10:28-43)
Joshua made speed in taking these cities. See what a great deal of work may be done in a little time, if we will be diligent, and improve our opportunities. God here showed his hatred of the idolatries and other abominations of which the Canaanites had been guilty, and shows us how great the provocation was, by the greatness of the destruction brought upon them. Here also was typified the destruction of all the enemies of the Lord Jesus, who, having slighted the riches of his grace, must for ever feel the weight of his wrath. The Lord fought for Israel. They could not have gotten the victory, if God had not undertaken the battle. We conquer when God fights for us; if he be for us, who can be against us?