Joshua 10:6

And the men of Gibeon sent unto Joshua, to the camp, to Gilgal, for they were now in alliance with Israel, saying, Slack not thy hand from thy servants, do not withdraw it in this emergency; come up to us quickly, and save us, and help us, the appeal being in the form of a climax; for all the kings of the Amorites that dwell in the mountains are gathered together against us. Since the Amorites of the mountains, the Jebusites, were the strongest among the allies, the entire army of the enemy is described accordingly.