Joshua 15:4

and it passed along to Azmon, went out at the brook of Egypt; and the border ended at the sea. This shall be your south border.

Numbers 34:5

and the border shall turn about from Azmon to the brook of Egypt, and the goings out of it shall be at the sea.

Joshua 13:3

from the Shihor, which is before Egypt, even to the border of Ekron northward, which is counted as Canaanite; the five lords of the Philistines; the Gazites, and the Ashdodites, the Ashkelonites, the Gittites, and the Ekronites; also the Avvim,

Genesis 15:18

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

Exodus 23:31

I will set your border from the Red Sea even to the sea of the Philistines, and from the wilderness to the River; for I will deliver the inhabitants of the land into your hand, and you shall drive them out before you.

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 turn about from Azmon to the brook of Egypt, and the goings out of it shall be at the sea.

River

Joshua 13:3
from the Shihor, which is before Egypt, even to the border of Ekron northward, which is counted as Canaanite; the five lords of the Philistines; the Gazites, and the Ashdodites, the Ashkelonites, the Gittites, and the Ekronites; also the Avvim,
Exodus 23:31
I will set your border from the Red Sea even to the sea of the Philistines, and from the wilderness to the River; for I will deliver the inhabitants of the land into your hand, and you shall drive them out before you.