Ezequiel 47:8

8 He said to me, "This water flows toward the eastern region and goes down into the Arabah, Or [the Jordan Valley] where it enters the Dead Sea. When it empties into the sea, the salty water there becomes fresh.

8 And he said to me, These waters are flowing out to the east part of the land and down into the Arabah; and they will go to the sea, and the waters will be made sweet.