וְלָרֻאוּבֵנִ֨י וְלַגָּדִ֜י נָתַ֤תִּי מִן־הַגִּלְעָד֙ וְעַד־נַ֣חַל אַרְנֹ֔ן תּ֥וֹךְ הַנַּ֖חַל וּגְבֻ֑ל וְעַד֙ יַבֹּ֣ק הַנַּ֔חַל גְּב֖וּל בְּנֵ֥י עַמּֽוֹן׃
And unto the Reubenites and unto the Gadites I gave from Gilead even unto the valley of Arnon, the middle of the valley for a border; even unto the river Jabbok, which is the border of the children of Ammon;
Targum Jonathan on Deuteronomy
To the tribe Reuben and the tribe Gad have I given from Gilead to the river Arnona, half of the valley and its limit, unto the stream of Jubeka on the limit of the children of Ammon,