The fact that you didn't recognise the usage does not make it 'obscure'.

Yes it does. If we do not come across it in everyday usage, it is obscure. Besides you are trying to dodge this issue as well. May still indicates a possibility whereas there is no possibility that is was not a misquote.

As to 'blasphemy'. Well, really hitting rock bottom here. Relying on ancient laws put in place to protect mythical beings. You are really showing your true colours now. Keep it up :-)