Numbers 34:3

And to you was the south side from the desert of Zin upon the hands of Edom, and to you was the south boundary from the extremity of the salt sea eastward.

Genesis 14:3

All these joined together in the valley of Siddim; this is the sea of salt

Ezekiel 47:13

Thus said the Lord Jehovah: This the bound by which ye shall inherit the land for the twelve tribes of Israel: Joseph two portions.

Exodus 23:31

And I put thy bounds from the sea of sedge, and even to the sea of the Philistines, and from the desert even to the river: for I will give into your hand those inhabiting the land, and thou drove them out from before thee.

Joshua 3:16

And the waters coming down from above will stand, they rose up one heap very far off in Adam, the city which is by the side of Zaretan; and coming down upon the sea of the desert, the salt sea, they ceased, they were cut off: and the people passed through over against Jericho.

Joshua 15:1-12

And the lot shall be to the tribe of the sons of Judah according to their families, to the bound of Edom, the desert of Zin south from the south extremity.,

Ezekiel 47:8

And he will say to me, These waters going forth to the circuit of the east, and they went down to Arabia and came into the sea: being brought forth to the sea and the waters were healed.

Ezekiel 47:18-23

And the side of the east from between Hauran and tom between Damascus, and from between Gilead and from between the land of Israel, Jordan, from the bound to the east sea shall ye measure: and 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 put thy bounds from the sea of sedge, and even to the sea of the Philistines, and from the desert even to the river: for I will give into your hand those inhabiting the land, and thou drove them out from before thee.
Joshua 15:1
And the lot shall be to the tribe of the sons of Judah according to their families, to the bound of Edom, the desert of Zin south from the south extremity.,
Ezekiel 47:13
Thus said the Lord Jehovah: This the bound by which ye shall inherit the land for the twelve tribes of Israel: Joseph two portions.

Salt sea eastward

Joshua 3:16
And the waters coming down from above will stand, they rose up one heap very far off in Adam, the city which is by the side of Zaretan; and coming down upon the sea of the desert, the salt sea, they ceased, they were cut off: and the people passed through over against Jericho.
Joshua 15:2
And the south bound shall be to them from the extremity of the salt sea from the tongue turning south.
Ezekiel 47:8
And he will say to me, These waters going forth to the circuit of the east, and they went down to Arabia and came into the sea: being brought forth to the sea and the waters were healed.