Joshua 15:4

15:4 and it passed along to Azmon, and went out at the brook of Egypt; and the goings out of the border were at the sea: this shall be your south border.
-World English Bible

Other Translation

15:4 [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.
-King James Version