וַיִּ֣ירְשׁ֔וּ אֵ֖ת כָּל־גְּב֣וּל הָאֱמֹרִ֑י מֵֽאַרְנוֹן֙ וְעַד־הַיַּבֹּ֔ק וּמִן־הַמִּדְבָּ֖ר וְעַד־הַיַּרְדֵּֽן׃
Mereka menduduki seluruh wilayah orang Amori, mulai dari Arnon sampai ke Yabok, dan dari padang gurun sampai ke Yordan.
Rashi
They took possession, etc., from Arnon to the Yabok. Which you claim as yours, they annexed from Sichon.
Rashi
From the wilderness to the Yardein. There was a wilderness area adjoining the Yardein.