Joshua 13:16

“And their coast was from Aroer that [is] on the bank of the river Arnon, etc.] As the country of Sihon is described, (<061309>Joshua 13:9); from whence it appears that it was his country which was given to Reuben, though not all of it: and the city that [is] in the midst of the river; (see Gill on “<061309>Joshua 13:9”); and all the plain by Medeba; which reached unto Dibon, (<061309>Joshua 13:9).”

“The writer appends to the command of God Joshua 13:1-7 a statement that the other two tribes and a half had already had their inheritance marked out for them by Moses in the land east of Jordan. The boundaries of this territory as a whole are first set forth Joshua 13:8-14, and afterward the portions assigned within it to the two tribes and a half are severally described Joshua 13:15-33. Joshua 13:14 See Deuteronomy 18:1-5 and notes. Joshua 13:15-24 Inheritance of the tribe of Reuben. This territory was the most southerly of the trans-Jordanic possessions of Israel, and adjoined Moab, which lay only on the other side of the Arnon. Hence, the Reubenites became in after times much intermixed…”

“Jos 13:9, Jos 12:2; Num 21:28-30, Num 32:33-38; Deu 3:12; Isa 15:1, Isa 15:2, Isa 15:4, Isa 16:7-9; Jer 48:21-24 Joshua 13:17”