Kommentar zu Dewarim 3:16

תוך הנחל וגבול THE MIDST OF THE BROOK AND THE TERRITORY, i.e., all the brook and in addition, land on its opposite bank. The words therefore are as much as to say, עד "unto” the Brook of Arnon, ועד "and” that which is mentioned as being "unto” (i.e. the Brook itself) is included (by the words תוך הנחל), and even more than this (namely, the גבול, land on the other side of the brook).

Until its opposite bank etc. I.e., the inheritance of the Gaddites, which was on the eastern side of the Yardein, continues across the western edge of Wadi Arnon. For the verse, “and the border,” means: “This is the border [of their inheritance],” which continues until the wadi on the western side [of the Yardein]. And then it continues up until and includes Yabok. For, “even more,” also includes Yabok.