Deuteronomy 3:16

16 and to the lineages of Reuben and of Gad I gave the land of Gilead, till to the strand of Arnon, (that is, unto) the middle of the strand, and of the ends till to the strand of Jabbok, which is the term of the sons of Ammon. (and to the tribes of Reuben and of Gad I gave the land of Gilead, unto the middle of the Arnon River in the south, and up to the Jabbok River in the north, which is the border with the Ammonites.)

Deuteronomy 3:16 Meaning and Commentary

Deuteronomy 3:16

And unto the Reubenites, and unto the Gadites
The tribes of Reuben and Gad:

I gave from Gilead even unto the river Arnon:
see ( Deuteronomy 3:12 )

half the valley and the border;
or rather half the river, the river Arnon; and so it is rendered "the middle of the river", in ( Joshua 12:2 ) and so here the middle of the torrent by the Vulgate Latin and Septuagint versions, and by Onkelos:

even unto the river Jabbok, which is the border of the children of
Ammon;
beyond which the land given to the tribes of Reuben and Gad reached not; see ( Deuteronomy 2:37 ) .

Deuteronomy 3:16 In-Context

14 Jair, the son of Manasseh, wielded all the country of Argob, unto the land of Geshuri and of Maachathi; and he called (the towns there) by his name Bashanhavothjair, that is, the towns of Jair, till into this present day. (Jair, the son of Manasseh, took all the region of Argob, unto the borders of the Geshurites and the Maachathites; and he called the towns there Bashanhavothjair, that is, the towns of Jair, after his own name, and they still be called that unto this present day.)

15 Also I gave Gilead to Machir; (And I gave Gilead to Machir;)

16 and to the lineages of Reuben and of Gad I gave the land of Gilead, till to the strand of Arnon, (that is, unto) the middle of the strand, and of the ends till to the strand of Jabbok, which is the term of the sons of Ammon. (and to the tribes of Reuben and of Gad I gave the land of Gilead, unto the middle of the Arnon River in the south, and up to the Jabbok River in the north, which is the border with the Ammonites.)

17 And I gave to them the plain of the wilderness, unto (the) Jordan, and the terms of Chinnereth unto the sea of (the) desert, the which is the most salt(y) sea, at the roots of the hill of Pisgah, against the east. (And on the west, I gave them the plain, or the Arabah, unto the Jordan River, from the Sea of Galilee, or Lake Galilee, in the north, down to the Salt Sea, or the Dead Sea, in the south, and to the foot of Ashdothpisgah, or Mount Pisgah, on the east.)

18 And I commanded to you in that time, and said, Your Lord God giveth to you this land into heritage; all ye strong men, (And I commanded to you at that time, and said, The Lord your God hath given you this land for an inheritance; all ye strong men,)