SINAI
(a) Desert crossed by the Israelites on their way from Elim and the Red Sea to Rephidim and Mount Sinai (Ex. 16:1; 17:1; Num. 33:11, 12).
It is possible that it is Debbet er-Ramleh, a sandy area in the interior of the peninsula, at the foot of Jebel et-Tih; but the desert plain of el-Markhah, on the coast, has also been considered.
If this second hypothesis corresponds to reality, the Israelites, upon leaving this plain, continued along the coast, and then headed inland from the wadi Feirãn.
(b) Fortified city of Egypt (Ez. 30:15, 16). In the V. 15, the LXX gives the reading of Sais, which however was never an important fortress.
In the Vulgate Pelusa appears: key to Egypt, and strongly fortified, this position had to be conquered first when Egypt was invaded from the northeast. In the V. 16, the LXX gives the reading of Sevene, modern Aswan, near the first cataract.
The Egyptian cities of vv. 16-18 are numbered from south to north, which seems to confirm the identification of Sin with Sevene.