Joshua 15:4

From thence it passed towards Azmon, and went out to the river of Egypt; and the limits of that border were at the sea: this shall be your south limit.

Numbers 34:5

And the border shall form a circuit from Azmon to the river of Egypt, and the limits of it shall be at the sea.

Joshua 13:3

From Sihor, which is before Egypt, even to the borders of Ekron northward, which is counted to the Canaanite: five lords of the Philistines; the Gazathites, and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites; also the Avites:

Genesis 15:18

In that same day the LORD made a covenant with Abram, saying, To thy seed have I given this land, from the river of Egypt to the great river, the river Euphrates:

Exodus 23:31

And I will set thy bounds from the Red sea even to the sea of the Philistines, and from the desert to the river: for I will deliver the inhabitants of the land into your hand; and thou shalt drive them out 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 border shall form a circuit from Azmon to the river of Egypt, and the limits of it shall be at the sea.

River

Joshua 13:3
From Sihor, which is before Egypt, even to the borders of Ekron northward, which is counted to the Canaanite: five lords of the Philistines; the Gazathites, and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites; also the Avites:
Exodus 23:31
And I will set thy bounds from the Red sea even to the sea of the Philistines, and from the desert to the river: for I will deliver the inhabitants of the land into your hand; and thou shalt drive them out before thee.