'Southern' in the Bible

Your southern side will be from the Wilderness of Zin along the boundary of Edom. Your southern border on the east will begin at the east end of the Dead Sea.

You will measure outside the city the eastern edge two thousand cubits, for the southern edge two thousand cubits, for the western edge two thousand cubits, and for the northern edge two thousand cubits, with the city in the middle; this will be for them the pasturelands of the cities.