'Boundary' in the Bible

"You should fear me!" says the Lord. "You should tremble in awe before me! I made the sand to be a boundary for the sea, a permanent barrier that it can never cross. Its waves may roll, but they can never prevail. They may roar, but they can never cross beyond that boundary."

The boundary line will extend beyond that, straight west from there to the Hill of Gareb and then turn southward to Goah.