10 Then it curved westward from Baalah to Mount Seir, ran along the northern slope of Mount Jearim (that is, Kesalon), continued down to Beth Shemesh and crossed to Timnah.

Matthew Henry's Commentary on Joshua 15:10

Commentary on Joshua 15:1-12

(Read Joshua 15:1-12)

Joshua allotted to Judah, Ephraim, and the half of Manasseh, their inheritances before they left Gilgal. Afterwards removing to Shiloh, another survey was made, and the other tribes had their portion assigned. In due time all God's people are settled.