Deuteronomy 3:9 - Albert Barnes' Notes on the Bible

Hermon, the southern and culminating point of the range of Lebanon, was also the religious center of primaeval Syria. Its Baal sanctuaries not only existed but gave it a name before the Exodus. Hence, the careful specification of the various names by which the mountain was known. The Sidonian name of it might easily have become known to Moses through the constant traffic which had gone on from the most ancient times between Sidon and Egypt.