'Middle' in the Bible

And to the Reubenites and to the Gadites I gave, from Gilead up to the wadi of Arnon, the middle of the wadi [as a] boundary and up to the Jabbok {River}, the boundary of the {Ammonites}.

And [then] you shall gather all of its booty into the middle of its public square, and you shall burn the town and all [of] its war-booty totally for Yahweh your God, and it shall be {a pile of rubble forever}; it shall not be built again.