The Amorites that dwell in the mountains — i.e., in the mountainous district lying on the south of Jerusalem.
Related Commentaries of Joshua 10:6
Joshua 10:6
6 And the men of Gibeon sent unto Joshua to the camp to Gilgal, saying, Slack not thy hand from thy servants; come up to us quickly, and save us, and help us: for all the kings of the Amorites that dwell in the mountains are gathered together against us.