[SoliDeoGloria]

I won't, however, drop the thrust of my argument in Post #105.

Does any Roman Catholic have infallible proof that Jesus wrote in the sand as recorded in John 8:1-11? Can any Roman Catholic state "the Church's" official position concerning the canonicity of this passage?

If not, then the Roman Catholic Church is in exactly the same position as the protestant church: You do not have an infallible declaration as to what is and what is not scripture.

[SoliDeoGloria]

Moreover, Catholics themselves clearly testify that the Roman Catholic Church erred in "preserving" Sacred Scripture. (again see post #105)

As such, the Roman Catholic Church can neither be said to be without error (inerrant) or incapable of error (infallible).