So Moses brought Israel from the Red sea, and they went out into the wilderness of Shur; and they went three days in the wilderness, and found no water.
Wilderness of Shur - comprehending all the western part of Arabia-Petraea. The desert of Etham was a part of it, extending round the northern portion of the Red Sea, and a considerable distance along its eastern shore; whereas the "wilderness of Shur" (now Sudhr) was the designation of all the desert region of Arabia. Petraea that lay next to Palestine. It appears to be identical with the present pasture grounds of the Arab tribe Terabin, extending 'from the mountains near Suez to the region of Gaza' (Robinson's 'Biblical Researches,' vol. 1:, p. 274; Wilton's 'Negeb,' p. 6; Burckhardt's 'Syria,' p. 481).