They journeyed from Mount Hor. It appears from comparison of Numbers 33:38 and Numbers 20:29 that their departure was not earlier than the beginning of the sixth month of the fortieth year. This season would be one of the hottest and most trying for marching.
By the way of the Red Sea, i.e; down the Arabah, towards Ezion-geber, at the head of the Elanitic Gulf. Septuagint, ὁδὸν ἐπὶ θά. Not far from this place they would reach the end of the Edomitish territory, and turn eastwards and northwards up the Wady el Ithm towards the steppes of Moab.
Discouraged. Literally, "shortened" or "straitened," as in Exodus 6:9. Septuagint, ὡλιγοψύχησεν ὁ λαός. Because of the way. The Ambah is a stony, sandy, almost barren plain shut in by mountain walls on either side, and subject to sand-storms.
It was not only, however, merely the heat and drought and ruggedness of the route which depressed them, but the fact that they were marching directly away from Canaan, and knew not how they were ever to reach it.