اَلْعَدَد 34:6

وَأَمَّا تُخْمُ ٱلْغَرْبِ فَيَكُونُ ٱلْبَحْرُ ٱلْكَبِيرُ لَكُمْ تُخْمًا. هَذَا يَكُونُ لَكُمْ تُخْمُ ٱلْغَرْبِ.

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