16 And to the Reubenites and the Gadites I gave from Gilead as far as the River Arnon, the middle of the river as the border, as far as the River Jabbok, the border of the people of Ammon;

Matthew Henry's Commentary on Deuteronomy 3:16

Commentary on Deuteronomy 3:12-20

(Read Deuteronomy 3:12-20)

This country was settled on the Reubenites, Gadites, and half the tribe of Manasseh: see Numbers 32. Moses repeats the condition of the grant to which they agreed. When at rest, we should desire to see our brethren at rest too, and should be ready to do what we can towards it; for we are not born for ourselves, but are members one of another.