Adam Clarke on Joshua 9:17

The children of Israel - came unto their cities - Probably when the fraud was discovered, Joshua sent out a detachment to examine their country, and to see what use could be made of it in the prosecution of their war with the Canaanites. Some of the cities mentioned here were afterwards in great repute among the Israelites: and God chose to make one of them, Kirjath-jearim, the residence of the ark of the covenant for twenty years, in the reigns of Saul and David. There is no evidence that the preservation of the Gibeonites was displeasing to Jehovah.