Joshua 1:4

1:4 From the wilderness and this Lebanon even unto the great river, the river Euphrates, all the land of the Hittites, and unto the great sea toward the going down of the sun, shall be your coast.

Joshua 15:12

15:12 And the west border [was] to the great sea, and the coast [thereof]. This [is] the coast of the children of Judah round about according to their families.

Joshua 23:4

23:4 Behold, I have divided unto you by lot these nations that remain, to be an inheritance for your tribes, from Jordan, with all the nations that I have cut off, even unto the great sea westward.

Numbers 34:6

34:6 And [as for] the western border, ye shall even have the great sea for a border: this shall be your west border.