If a man showed up today with a different plan of salvation non congruous with that of Jesus and John the Baptist, With an account of encountering Jesus out in the woods somewhere, and a story of being taken to and receiving visions in 3rd heaven I would be leery. Now if Jesus appeared with him and ratified the message and told me "I know I taught for over 3 years but I forgot to tell you folks the main reason I came" , well that would be different.
