This southern border ran from the south end of the Dead Sea,

The LORD will dry up the Gulf of Suez, and he will bring a hot wind to dry up the Euphrates, leaving only seven tiny streams, so that anyone can walk across.

the water stopped flowing and piled up, far upstream at Adam, the city beside Zarethan. The flow downstream to the Dead Sea was completely cut off, and the people were able to cross over near Jericho.

it included the Jordan Valley from Lake Galilee south to Beth Jeshimoth (east of the Dead Sea) and on toward the foot of Mount Pisgah.

These five kings had formed an alliance and joined forces in Siddim Valley, which is now the Dead Sea.

and destroyed them and the whole valley, along with all the people there and everything that grew on the land.

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.

On the west their territory extended to the Jordan River, from Lake Galilee in the north down to the Dead Sea in the south and to the foot of Mount Pisgah on the east.