Ok, say there are 4 works. It really doesn't matter because that is not the point of the argument. The point of the argument is that religous faith is based on a SET and SMALL number of historical works, whether it be 1 or 4 or 4000, that are NOT subject to scrutiny or revision, which are by definition NOT held to ANY standard of evidence, much less the standard of evidence that the library of scientific works, which in contrast numbers in the hundreds of thousands, is constantly being revised and added to, are held to.