Yehoshua 15:12

12 And the western boundary is HaYamah HaGadol, and the coast thereof. This is the boundary around the Bnei Yehudah according to their mishpekhot.

Yehoshua 15:12 Meaning and Commentary

Joshua 15:12

And the west border [was] to the great sea, and the coast
[thereof]
The western border of the tribe of Judah went along by the Mediterranean sea, which lay west to the land of Canaan; and this border reached from Jabneel to the river of Egypt, where the southern border ended, ( Joshua 15:4 ) ;

this [is] the coast of the children of Judah round about according to
their families;
but being too large, some part of it was afterwards given to Simeon, and some particular cities of it were given to Dan and Benjamin: it was bounded on the west by the tribes of Simeon and Dan towards the Mediterranean sea, and by the tribe of Benjamin on the north, and by the wilderness of Paran on the south, and by the dead sea and Jordan on the east.

Yehoshua 15:12 In-Context

10 And the boundary curved from Baalah westward unto Mt Seir, and ran along unto the slope of Mt Yearim (that is, Kesalon), on the north side, and went down to Beit Shemesh, and passed on to Timnah;

11 And the boundary went out unto the side of Ekron northward; and the boundary ran over to Shikkeron, and passed along to Mt Baalah, and went out unto Yavne’el; and the boundary ended at the Yam [Mediterranean Sea].

12 And the western boundary is HaYamah HaGadol, and the coast thereof. This is the boundary around the Bnei Yehudah according to their mishpekhot.

13 And unto Kalev ben Yephunneh he gave chelek among the Bnei Yehudah, according to the commandment of Hashem to Yehoshua, even Kiryat-Arba (avi HaAnak), which is Chevron.

14 And Kalev drove from there the three Bnei Anak: Sheshai and Achiman and Talmai, the descendants of Anak.