St. Ambrose translates the Septuagint as usual, but there are some variations. Probably Libanus is a copyist’s mistake for Liba [Λίβα] the W.S.W. wind. So, too, Boream perhaps should be mare [παρὰθάλασσαν]. In ch. 115, St. Ambrose in explaining the third trumpet speaks of the sea. The third and fourth trumpets are not mentioned except in the Septuagint, and it may be noticed that St. Ambrose changes the description of the positions of the camps [παρεμβάλλουσαι], consttuta, into a direction, constituentur.