You have a typo. it's not יושבי ההל, it's יושבי ההר. The sentence means: "The kings of the emory, that dwell in the mountain, have gathered" Emory is an ancient nation.

u mean "ישבי ההר" ppl who live in the nountains

Here is an Hebrew-English Bible, side by side, that might help you in the future: http://www.mechon-mamre.org/p/pt/pt0101.htm (the English search is good. For Hebrew search you'le need to go to their Hebrew only page) Here's their translation (Joshua 10): נִקְבְּצוּ אֵלֵינוּ, כָּל-מַלְכֵי הָאֱמֹרִי יֹשְׁבֵי הָהָר. All the kings of the Amorites that dwell in the hill-country are gathered together against us and in context: ו וַיִּשְׁלְחוּ אַנְשֵׁי גִבְעוֹן אֶל-יְהוֹשֻׁעַ אֶל-הַמַּחֲנֶה הַגִּלְגָּלָה לֵאמֹר, אַל-תֶּרֶף יָדֶיךָ מֵעֲבָדֶיךָ: עֲלֵה אֵלֵינוּ מְהֵרָה, וְהוֹשִׁיעָה לָּנוּ וְעָזְרֵנוּ--כִּי נִקְבְּצוּ אֵלֵינוּ, כָּל-מַלְכֵי הָאֱמֹרִי יֹשְׁבֵי הָהָר. 6 And the men of Gibeon sent unto Joshua to the camp to Gilgal, saying: 'Slack not thy hands 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 hill-country are gathered together against us.' Hope it helps, Amir