Commentaries:
Jamieson, Fausset, and Brown
encamped in Etham—This place is supposed by the most intelligent travellers to be the modern Ajrud, where is a watering-place, and which is the third stage of the pilgrim-caravans to Mecca. "It is remarkable that either of the different routes eastward from Heliopolis, or southward from Heroopolis, equally admit of Ajrud being Etham. It is twelve miles northwest from Suez, and is literally on the edge of the desert" [Pictorial Bible].
Other Jamieson, Fausset, and Brown entries containing Exodus 13:20:
Exodus 13:17
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