John Wesley on Numbers 21:4

By way of the Red - sea - Which leadeth to the Red - sea, as they must needs do to compass the land of Edom. Because of the way - By reason of this journey, which was long and troublesome, and unexpected, because the successful entrance and victorious progress which some of them had made in the borders of Canaan, made them think they might have speedily gone in and taken possession of it, and so have saved the tedious travels and farther difficulties, into which Moses had again brought them.