Joshua 15:4 in the King James Version
From thence it passed toward Azmon, and went out unto the river of Egypt; and the goings out of that coast were at the sea: this shall be your south coast.
Context
3 and it went out southward of the ascent of Akrabbim, and passed along to Zin, and went up by the south of Kadesh Barnea, and passed along by Hezron, went up to Addar, and turned toward Karka;
4 and it passed along to Azmon, went out at the brook of Egypt; and the border ended at the sea. This shall be your south border.
5 The east border was the Salt Sea, even to the end of the Jordan. The border of the north quarter was from the bay of the sea at the end of the Jordan.