Then the boundary goes down to the border of the mountain that overlooks the Valley of the Son of Hinnom, which is at the north end of the Valley of Rephaim. And it then goes down the Valley of Hinnom, south of the shoulder of the Jebusites, and downward to En-rogel.
We have here the lot of the tribe of Benjamin, which Providence cast next to Joseph on the one hand, because Benjamin was own and only brother to Joseph, and was little Benjamin (Psa 68:27), that needed the protection of great Joseph, and yet had a better protector, for the Lord shall cover him all the day long, Deu 33:12.
Commenting on Joshua 18:11-28
And the border came down,.... In the description of the border of Judah, hereabout, it is said to go up, Jos 15:5; because there, as Jarchi observes, the measure was from east to west, but here from west to east: to the end of the mountain that lieth before the valley of the son of Hinnom; this south border of Benjamin is the same with...
To the side of Jebusi - The mountain of Zion, that was near Jerusalem; for Jebusi, or Jebus, was the ancient name of this city.