East Sea in the Bible

And on the east side ye shall measure between Hauran and Damascus, and Gilead and the land of Israel by the Jordan, from the border unto the east sea: this is the east side.

But I will remove far off from you the northern army, and will drive him into a land barren and desolate, with his face toward the east sea, and his hinder part toward the utmost sea, and his stink shall come up, and his ill savour shall come up, because he hath done great things.

In that time shall there waters of life run out from Jerusalem: the half part of them toward the east sea, and the other half toward the utmost sea, and shall continue both summer and winter.