“And as for the western border, ye shall even have the great sea for a border: this shall be your west border.”
Numbers 34:6 (KJV)
Context Reading
4And your border shall turn from the south to the ascent of Akrabbim, and pass on to Zin: and the going forth thereof shall be from the south to Kadesh-barnea, and shall go on to Hazar-addar, and pass on to Azmon: 5And the border shall fetch a compass from Azmon unto the river of Egypt, and the goings out of it shall be at the sea. 6And as for the western border, ye shall even have the great sea for a border: this shall be your west border. 7And this shall be your north border: from the great sea ye shall point out for you mount Hor: 8From mount Hor ye shall point out your border unto the entrance of Hamath; and the goings forth of the border shall be to Zedad: