Numbers 34:3

And your south quarter shall be from the wilderness of Zin along by the border of Edom, and your south border shall be the furthest coast of the Salt Sea eastward.

Genesis 14:3

All these were joined together in the valley of Siddim, which is the Salt Sea.

Ezekiel 47:13

So says the Lord Jehovah: This shall be the border by which you shall inherit the land according to the twelve tribes of Israel. Joseph shall have two parts.

Exodus 23:31

And I will stretch your bounds from the Red Sea even to the Sea of the Philistines, and from the desert to the river. For I will deliver the inhabitants of the land into your hand, and you shall drive them out before you.

Joshua 3:16

that the waters which came down from above stopped and rose up all in a heap, very far from the city Adam that is beside Zaretan. And those that came down toward the sea of the plain, the Salt Sea, were completely cut off. And the people passed over across from Jericho.

Joshua 15:1-12

This then was the lot of the tribe of the sons of Judah by their families: to the border of Edom, the wilderness of Zin southward, in the extreme south.

Ezekiel 47:8

And he said to me, These waters go out toward the eastern circuit, and go down into the Arabah, and go into the sea. They are brought out into the sea, and the waters shall be healed.

Ezekiel 47:18-23

And you shall measure the east side from between Hauran, and from Damascus, and from Gilead, and the land of Israel, shall be the Jordan, from the border to the Eastern Sea. And this is the east side.

Treasury of Scripture Knowledge

Summary

Then your south quarter shall be from the wilderness of Zin along by the coast of Edom, and your south border shall be the outmost coast of the salt sea eastward:

Bible References

South quarter

Exodus 23:31
And I will stretch your bounds from the Red Sea even to the Sea of the Philistines, and from the desert to the river. For I will deliver the inhabitants of the land into your hand, and you shall drive them out before you.
Joshua 15:1
This then was the lot of the tribe of the sons of Judah by their families: to the border of Edom, the wilderness of Zin southward, in the extreme south.
Ezekiel 47:13
So says the Lord Jehovah: This shall be the border by which you shall inherit the land according to the twelve tribes of Israel. Joseph shall have two parts.

Salt sea eastward

Joshua 3:16
that the waters which came down from above stopped and rose up all in a heap, very far from the city Adam that is beside Zaretan. And those that came down toward the sea of the plain, the Salt Sea, were completely cut off. And the people passed over across from Jericho.
Joshua 15:2
And their south border was from the end of the Salt Sea, from the bay that looks southward.
Ezekiel 47:8
And he said to me, These waters go out toward the eastern circuit, and go down into the Arabah, and go into the sea. They are brought out into the sea, and the waters shall be healed.