Joshua 15:4

And it passed through Azmon, and it went out to the torrent of Egypt; and the going forth of the bound was to the sea: this shall be to you the south bound.

Numbers 34:5

And the boundary turned from Azmon to the torrent of Egypt, and the goings out were the sea.

Joshua 13:3

From Sihor, which is upon the face of Egypt, even to the bound of Ekron to the north, it will be reckoned to the Canaanite; five lords of Philisteim; the Gazathites, and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites, and the Avites:

Genesis 15:18

In that day Jehovah cut out a covenant with Abram, saying, To thy seed gave I this land from the river of Egypt, to the great river, the river Euphrates:

Exodus 23:31

And I put thy bounds from the sea of sedge, and even to the sea of the Philistines, and from the desert even to the river: for I will give into your hand those inhabiting the land, and thou drove 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
And the boundary turned from Azmon to the torrent of Egypt, and the goings out were the sea.

River

Joshua 13:3
From Sihor, which is upon the face of Egypt, even to the bound of Ekron to the north, it will be reckoned to the Canaanite; five lords of Philisteim; the Gazathites, and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites, and the Avites:
Exodus 23:31
And I put thy bounds from the sea of sedge, and even to the sea of the Philistines, and from the desert even to the river: for I will give into your hand those inhabiting the land, and thou drove them out from before thee.