Joshua 15:8
And the border went up by the valley of the son of Hinnom unto the south side of the Jebusite; the same is Jerusalem: and the border went up to the top of the mountain that lieth before the valley of Hinnom westward, which is at the end of the valley of the giants northward:
Cross-references
Joshua 15:63 states the Jebusites still lived in Jerusalem, adding historical note to the border marker in verse 8.
Joshua 18:16 describes the same Valley of Hinnom slope on Benjamin's border — directly parallel to Judah's border.
Judges 1:21 parallels Joshua 15:63, stating Benjamin also failed to drive out Jebusites, reinforcing incomplete conquest.
Jeremiah 7:31 reveals the Valley of Hinnom later became Topheth for child sacrifice, adding moral significance to Joshua's geographical boundary.
Jeremiah 7:32 prophesies the valley's name change to Valley of Slaughter, expanding on its future judgment.
Jeremiah 19:2 sends the prophet to the same valley to proclaim judgment, linking the geography to divine messages.
Jeremiah 19:6 repeats the prophecy of renaming the valley to Valley of Slaughter, reinforcing the judgment theme.
Jeremiah 19:14 records Jeremiah's return from Topheth, concluding the prophetic episode at that same location.