Joshua 15:4
from there it passed toward Azmon and went out unto the river of Egypt, and this border goes out to the western sea. This shall be your border of the Negev.
Numbers 34:5
and the border shall fetch a compass from Azmon unto the river of Egypt, and the goings out of it shall be at the western sea.
Joshua 13:3
from the Nile, which is before Egypt, even unto the borders of Ekron northward, which is counted among the Canaanites; five cardinals of the Philistines; the Gazathites and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites, also the Avites;
Genesis 15:18
In the same day the LORD made a covenant with Abram, saying, Unto thy seed shall I give this land, from the river of Egypt unto the great river, the river Euphrates:
Exodus 23:31
And I will set thy borders from the Red sea even unto the sea of the Philistines and from the desert unto the river; for I will deliver the inhabitants of the land into your hand, and thou shalt drive them out before thee.