יהושע, פרק ט״ו, פסוק י״א

The northern border of the tribe of Judah follows a winding path across the land, tracing a distinct route before finally meeting the Mediterranean Sea [ביאור שטיינזלץ]. The boundary initially veers north toward the Philistine territory of Ekron. By shifting in this direction, the city of Ekron is brought completely within the borders of Judah's inheritance [מצודת דוד, מלבי״ם].

From there, the path wraps around the city of Shikron. While Shikron itself remains just outside of Judah's territory, the border encloses the city from three sides before curving back to its original trajectory near Ekron [מלבי״ם]. Moving onward, the boundary straightens out as it passes Mount Baalah. It then takes another turn to reach the city of Yavne'el [מלבי״ם]. This specific Yavne'el is situated in the mountains of Judah, and it must be distinguished from another city of the exact same name located in the territory of the tribe of Naphtali [מלבי״ם, ביאור שטיינזלץ].

The primary approach among commentators is that the journey of this boundary finally comes to an end in the west. The winding border terminates exactly where the land meets the edge of the Great Sea, the Mediterranean.