And Joshua returned, and all Israel with him, to Debir; and fought against it:

Wesley's Notes

10:38 Joshua returned - He is said to return thither, not as if he had been there before, but because having gone as far westward and southward as he thought fit, even as far as Gaza, ver.41, he now returned towards Gilgal, which lay north - ward and eastward from him, and in his return fell upon Debir.

Matthew Henry's Concise Commentary

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?