Joshua 15:2

The shore of the salt sea was their south border, from the bay that looks southward:

Genesis 14:3

These joined forces in the Valley of Siddim at the Dead Sea.

Numbers 34:3

The southern border will extend from the wilderness of Zin along the border of Edom. It will begin on the east at the southern end of the Dead Sea.

Joshua 3:16

The waters stood and rose up upon a heap very far from the city Adam that is beside Zaretan. The waters that came down toward the sea of the plain, even the salt sea, failed, and were cut off. The people passed over the Jericho.

Isaiah 11:15

Jehovah will utterly destroy the tongue of the Sea of Egypt. He will wave his hand, his mighty Spirit, over the (Euphrates) River. He will strike it into seven streams and make men walk over on dry land.

Ezekiel 47:8

He said: This water flows through the land to the east, down into the Jordan Valley, and into the Dead Sea. When the water flows into the Dead Sea, it will replace the salt water there with fresh water.

Ezekiel 47:18

On the east side the border will run between Hauran and Damascus. The Jordan River will serve as the border between Gilead and the land of Israel. The border will continue from the Dead Sea down to Tamar. This is the east side.

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
The waters stood and rose up upon a heap very far from the city Adam that is beside Zaretan. The waters that came down toward the sea of the plain, even the salt sea, failed, and were cut off. The people passed over the Jericho.
Genesis 14:3
These joined forces in the Valley of Siddim at the Dead Sea.
Numbers 34:3
The southern border will extend from the wilderness of Zin along the border of Edom. It will begin on the east at the southern end of the Dead Sea.
Ezekiel 47:8
He said: This water flows through the land to the east, down into the Jordan Valley, and into the Dead Sea. When the water flows into the Dead Sea, it will replace the salt water there with fresh water.