In some cases--most notably the Christian--one revelation is apparently not sufficient, and needs to be reinforced by successive apparitions, with the promise of a further but ultimate one to come. In other cases, the opposite difficulty occurs and the divine instruction is delivered, only once, and for the final time, to an obscure personage whose lightest word then becomes law. Since all of these revelations, many of them hopelessly inconsistent, cannot by definition be simultaneously true, it must follow that some of them are false and illusory. It could also follow that only one of them is authentic, but in the first place this seems dubious and in the second place it appears to necessitate religious war in order to decide whose revelation is the true one.