Azmon: A Place on the South of Canaan

…cross south of the Ascent of Akrabbim, continue to Zin, and go south of Kadesh-barnea. Then it will go on to Hazar-addar and proceed to Azmon,

…where it will turn from Azmon, join the Brook of Egypt, and end at the Sea.

It proceeded to Azmon, joined the Brook of Egypt, and ended at the Sea. This was their southern border.