Joshua 15:4
and it passed along to Azmon, and went out at the brook of Egypt. And the goings out of the border were 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 reckoned to the Canaanites; the five lords of the Philistines; the Gazites, and the Ashdodites, the Ashkelonites, the Gittites, and the Ekron
Genesis 15:18
In that day LORD made a covenant with Abram, saying, To thy seed I have given this land, from the river of Egypt to the great river, the river Euphrates:
Exodus 23:31
And I will set thy 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 thou shall drive them out before thee.