Joshua 15:4

and passeth over to Azmon, and goeth forth at the ravine of Egypt, and so the extensions of the boundary are to the sea. This, shall be your south boundary.

Numbers 34:5

then shall the boundary turn round from Azmon towards the ravine of Egypt, - and the extension thereof shall be towards the sea.

Joshua 13:3

from the Shihor which faceth Egypt, even as far as the boundary of Ekron, northward, to the Canaanites, is it counted, - five princes of Philistines, the Gazites, and the Ashdodites, the Ashkalonites, the Gittites, and the Ekronites, also the Avvim

Genesis 15:18

In that day, did Yahweh solemnise with Abram a covenant, saying, - To thy seed, have I given this land, from the river of Egypt as far as the great river - the river Euphrates:

Exodus 23:31

So will I set thy bounds from the Red Sea even unto the sea of the Philistines and from the desert unto the River (Euphrates), - for I will deliver into your hand the inhabitants of the land, so shalt thou drive them out from before thee.

Treasury of Scripture Knowledge

Summary

From thence it passed toward Azmon, and went out unto the river of Egypt; and the goings out of that coast were at the sea: this shall be your south coast.

Azmon

Bible References

Azmon

Numbers 34:5
then shall the boundary turn round from Azmon towards the ravine of Egypt, - and the extension thereof shall be towards the sea.

River

Joshua 13:3
from the Shihor which faceth Egypt, even as far as the boundary of Ekron, northward, to the Canaanites, is it counted, - five princes of Philistines, the Gazites, and the Ashdodites, the Ashkalonites, the Gittites, and the Ekronites, also the Avvim
Exodus 23:31
So will I set thy bounds from the Red Sea even unto the sea of the Philistines and from the desert unto the River (Euphrates), - for I will deliver into your hand the inhabitants of the land, so shalt thou drive them out from before thee.