verses 17-19
Journey from Succoth to Etham. - Succoth, Israel's first place of encampment after their departure, was probably the rendezvous for the whole nation, so that it was from this point that they first proceeded in an orderly march. The shortest and most direct route from Egypt to Canaan would have been by the road to Gaza, in the land of the Philistines; but God did not lead them by this road, lest they should repent of their movement as soon as the Philistines opposed them, and so desire to return to Egypt, פּן: μή, after אמר to say (to himself), i.e., to think, with the subordinate idea of anxiety. The Philistines were very warlike, and would hardly have failed to resist the entrance of the Israelites into Canaan, of which they had taken possession of a very large portion. But the Israelites were not prepared for such a conflict, as is sufficiently evident from their despair, in Exo 14:10. For this reason God made them turn round (יסּב for יסב, see Ges. §67) by the way of the desert of the Red Sea. Previous to the account of their onward march, it is still further stated in Exo 13:18, Exo 13:19, that they went out equipped, and took Joseph's bones with them, according to his last request. חמשׁים, from חמשׁ lumbus, lit., lumbis accincti, signifies equipped, as a comparison of this word as it is used in Jos 1:14; Jos 4:12, with חלוּצים in Num 32:30, Num 32:32; Deu 3:18, places beyond all doubt; that is to say, not “armed,” καθωπλισμένοι (Sym.), but prepared for the march, as contrasted with fleeing in disorder like fugitives. For this reason they were able to fulfil Joseph's request, from which fact Calvin draws the following conclusion: “In the midst of their adversity the people had never lost sight of the promised redemption. For unless the celebrated adjuration of Joseph had been a subject of common conversation among them all, Moses would never have thought of it.”
Verse 20
From Succoth they went to Etham. With regard to the situation of Succoth (from סכּת huts, probably a shepherd encampment), only so much can be determined, that this place was to the south-east of Raëmses, on the way to Etham. Etham was “at the end of the desert,” which is called the desert of Etham in Num 33:8, and the desert of Shur (Jifar, see Gen 16:7)
