וַיִּ֣ירְשׁ֔וּ אֵ֖ת כָּל־גְּב֣וּל הָאֱמֹרִ֑י מֵֽאַרְנוֹן֙ וְעַד־הַיַּבֹּ֔ק וּמִן־הַמִּדְבָּ֖ר וְעַד־הַיַּרְדֵּֽן׃
And they possessed all the border of the Amorites, from the Arnon even unto the Jabbok, and from the wilderness even unto the Jordan.
Read midrashic interpretation of Judges 11:22: and classical rabbinic exegesis.