Pitched in Aroer. — The census began on the east of Jordan, at the extreme south, thence passed northwards through the eastern tribes, and crossing the Jordan, passed southwards through the western tribes. Aroer is the city described in Deuteronomy 2:36; Joshua 13:16 as on the river Arnon, at the extreme southern border of the trans-Jordanie territory.
Of Gad. — This follows the Masoretic reading. It is better to put a period after the word river, and for “of Gad” to read “towards Gad.” Perhaps the words “and they came” (towards Gad) may have been lost from the text.
Jazer. — A boundary city of Gad (Joshua 13:25). Thence they went to Gilead.