Numbers 34:6
And as for the western border, ye shall even have the great sea for a border: this shall be your west border.
Cross-references
Numbers 34:7 begins the northern border from the same Great Sea, linking the two boundaries at their starting point.
Numbers 34:5 traces the southern border to the sea, showing where the western and southern boundaries meet.
Joshua 1:4 names the 'Great Sea' as the western border of the promised land, the same boundary as in Numbers.
Joshua 15:12 states the western border of Judah is the 'coast of the Great Sea', directly mirroring the western border for all Israel in Numbers.
Ezekiel 47:20 explicitly repeats that the Great Sea is the western boundary, reinforcing the main verse's description of the land's western limit.
Deuteronomy 34:2 mentions 'the western sea' as part of the land Moses saw, echoing the main verse's western boundary.
Joshua 16:3 describes Ephraim's tribal border ending at the sea, reflecting the same western limit at a local level.
Joshua 16:8 likewise ends Ephraim's boundary at the sea, mirroring the main verse's western border in tribal allotment.