וְנָסַב֩ הַגְּב֨וּל מִבַּעֲלָ֥ה יָ֙מָּה֙ אֶל־הַ֣ר שֵׂעִ֔יר וְעָבַ֕ר אֶל־כֶּ֧תֶף הַר־יְעָרִ֛ים מִצָּפ֖וֹנָה הִ֣יא כְסָל֑וֹן וְיָרַ֥ד בֵּֽית־שֶׁ֖מֶשׁ וְעָבַ֥ר תִּמְנָֽה׃
Lalu batas itu berputar dari Baala ke barat menuju Gunung Seir, kemudian melintas ke lereng Gunung Yearim di sebelah utara, yaitu Kesalon, lalu turun ke Bet-Semes dan melintas ke Timna.
Rashi
The boundary turned from Baaloh westward. Now he reverts to his previous description [of the cities] from the east to the west.
Rashi
To the side of Mount Yearim to the north. The borderline was to the north of Mount Yearim. Thus Mount Yearim was within the boundary of Yehudah, within the borderline.