When ye blow an alarm the second time, then the camps that lie on the south side shall take their journey: they shall blow an alarm for their journeys.
No JFB commentary on these verses.
Related Commentaries of Numbers 10:6
Numbers 10:6-7
6 When ye blow an alarm the second time, then the camps that lie on the south side shall take their journey: they shall blow an alarm for their journeys.
7 But when the congregation is to be gathered together, ye shall blow, but ye shall not sound an alarm.