Deuteronomy 3:16

And to the tribes of Ruben and Gad, I gave from the land of Gilead as far as the torrent Arnon, one half of the torrent and its confines, even to the torrent Jabbok, which is along the border of the sons of Ammon

Other versions

King James Version

And unto the Reubenites and unto the Gadites I gave from Gilead even unto the river Arnon half the valley, and the border even unto the river Jabbok, which is the border of the children of Ammon;

English Standard Version

and to the Reubenites and the Gadites I gave the territory from Gilead as far as the Valley of the Arnon, with the middle of the valley as a border, as far over as the river Jabbok, the border of the Ammonites;

New International Version

But to the Reubenites and the Gadites I gave the territory extending from Gilead down to the Arnon Gorge (the middle of the gorge being the border) and out to the Jabbok River, which is the border of the Ammonites.