Joshua 15:2

And their border on the side of the Negev was from the shore of the salt sea from the bay that looks toward the Negev;

Genesis 14:3

All these were joined together in the vale of Siddim, which is the salt sea.

Numbers 34:3

you shall have on the side of the Negev from the wilderness of Zin unto the borders of Edom, and your border towards the Negev shall be the outmost coast of the salt sea eastward.

Joshua 3:16

that the waters which came down from above stood and rose up in a heap very far from the city of Adam, that is beside Zaretan; and those that came down toward the sea of the plain, even the salt sea, failed and were cut off; and the people passed over right against Jericho.

Isaiah 11:15

And the LORD shall utterly dry up the tongue of the Egyptian sea and shall raise his hand in the strength of his spirit upon the river and shall smite it into seven streams and make men go over dryshod.

Ezekiel 47:8

Then he said unto me, These waters issue out toward the east country and shall go down into the desert and go into the sea: which being brought forth into the sea, the waters of the sea shall be healed.

Ezekiel 47:18

And to the east side through Hauran, and Damascus, and Gilead, and through the land of Israel to the Jordan, ye shall measure this from the border unto the east sea.

Treasury of Scripture Knowledge

Summary

And their south border was from the shore of the salt sea, from the bay that looketh southward:

Bible References

The salt sea

Joshua 3:16
that the waters which came down from above stood and rose up in a heap very far from the city of Adam, that is beside Zaretan; and those that came down toward the sea of the plain, even the salt sea, failed and were cut off; and the people passed over right against Jericho.
Genesis 14:3
All these were joined together in the vale of Siddim, which is the salt sea.
Numbers 34:3
you shall have on the side of the Negev from the wilderness of Zin unto the borders of Edom, and your border towards the Negev shall be the outmost coast of the salt sea eastward.
Ezekiel 47:8
Then he said unto me, These waters issue out toward the east country and shall go down into the desert and go into the sea: which being brought forth into the sea, the waters of the sea shall be healed.