the great sea

Joshua 15:47
Ashdod, with its towns and villages; Gaza, with its towns and villages, as far as the Brook of Egypt and the coastline of the Great Sea.

Numbers 34:6, 7
Your western border will be the coastline of the Great Sea; this will be your boundary on the west. . . .

Deuteronomy 11:24
Every place where the sole of your foot treads will be yours. Your territory will extend from the wilderness to Lebanon, and from the Euphrates River to the Western Sea.

Ezekiel 47:20
And on the west side, the Great Sea will be the boundary up to a point opposite Lebo-hamath. This will be the western boundary.