8 The border followed the Valley of Ben Hinnom along the southern slope of the Jebusite ridge (that is, Jerusalem). It ascended to the top of the mountain opposite Hinnom Valley on the west, at the northern end of Rephaim Valley;

Matthew Henry's Commentary on Joshua 15:8

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.