There was a vigorous discussion about this text some years ago (on MEDTEXTL, I think), which produced many theories. However, despite much erudition and searching of databases, no-one could produce an ancient or medieval source. Eventually the earliest use seemed to be in Voltaire. An exact reference was given, but I'm afraid I didn't keep or cannot find it. -- Paul Chandler || Yarra Theological Union [log in to unmask] || Melbourne College of Divinity %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%