'Middle' in the Bible

and I gave to the Reubenites and Gadites the area extending from Gilead to the Arnon Valley (the middle of the valley was the border) and up to the Jabbok River, the border of the Ammonites.

and what He did to Dathan and Abiram, the sons of Eliab the Reubenite, when in the middle of the whole Israelite camp the earth opened its mouth and swallowed them, their households, their tents, and every living thing with them.

You are to gather all its spoil in the middle of the city square and completely burn up the city and all its spoil for the Lord your God. The city must remain a mound of ruins forever; it is not to be rebuilt.