וּגְב֥וּל קֵ֙דְמָה֙ יָ֣ם הַמֶּ֔לַח עַד־קְצֵ֖ה הַיַּרְדֵּ֑ן וּגְב֞וּל לִפְאַ֤ת צָפ֙וֹנָה֙ מִלְּשׁ֣וֹן הַיָּ֔ם מִקְצֵ֖ה הַיַּרְדֵּֽן׃
And the east border was the Salt Sea, even unto the end of the Jordan. And the border of the north side was from the bay of the sea at the end of the Jordan.
Read midrashic interpretation of Joshua 15:5: and classical rabbinic exegesis.