Shared ground
Joshua 18:11–20 presents Benjamin’s land as an assigned inheritance, not an undefined claim. The text explicitly says the lot “came up” for Benjamin “according to their families” (v. 11), and then it traces a full perimeter using repeated “border” language (border appears throughout). The boundaries are described by moving from one recognizable point to another: the Jordan, slopes near Jericho, hill-country, wilderness, springs, valleys, and named towns.
The passage also ties Benjamin’s territory to its neighbors. Benjamin is placed “between the children of Judah and the children of Joseph” (v. 11). The eastern edge is straightforward: the Jordan forms that side (v. 20). The section ends by restating that these borders define Benjamin’s inheritance for its clans (v. 20).
Where interpretation differs
Two kinds of questions create real uncertainty.
First, some specific place names are hard to pin down on a modern map. Readers agree the text intends a careful circuit, but they sometimes disagree about where certain sites were located and therefore how exactly the line runs.
Second, a few phrases can be read more than one way. For example, whether Kiriath-jearim (called a Judahite city in v. 14) functions only as a boundary marker or implies something about control/administration at the edge is debated. Likewise, “the side of the Jebusite” (v. 16) can be understood as a slope near a Jebusite-held area, or as the edge of a district associated with that group.
Why the disagreement exists
The passage uses ancient geographic reference points (springs, valleys, slopes, towns) that were meaningful to the original audience. Over time, names can shift, multiple sites can compete for the same name, and some locations become uncertain. Also, boundary descriptions regularly mix direction (“north,” “south,” “went up,” “went down”) with terrain language, so readers may picture the line differently depending on how they reconstruct the landscape.
What this passage clearly contributes
Explicitly, the text contributes a concrete definition of Benjamin’s inheritance: it is assigned by lot, bounded on all sides, and framed in relation to Judah, Joseph’s tribes, and the Jordan (vv. 11, 19–20). By naming alternate place names (Luz = Bethel; Kiriath-baal = Kiriath-jearim), it also shows that the writer expects readers to recognize locations even when more than one name is in use (vv. 13–14). More broadly (as inference), the careful boundary-walking shows that Israel’s settlement is portrayed as ordered and publicly knowable, with clear lines meant to reduce confusion between tribes and to anchor each group’s “according to their families” inheritance (vv. 11, 20).