'Boundary' in the Bible

And I've given Gilead to the descendants of Reuben and the descendants of Gad as far as the Arnon Valley, designating the middle of the valley as its boundary, including up to the Jabbok River as a boundary with the Ammonites.

The Arabah and the Jordan River are also a boundary from Chinnereth to the Sea of the Arabah (that is, the Salt Sea), below the slopes of Pisgah on the east."

"When you inherit the land that the LORD your God is about to give you, don't move your neighbor's boundary marker from where it was placed long ago."

""Cursed is the one who moves his neighbor's boundary stone.' "Then all the people are to respond by saying, "Amen!'