Start a rumor that Jesus has performed mircles like Chris Angel and raised from the dead...there are "witnesses" that he lives! {all his followers and of course Jesus couldn't stay long}
Mormons have a book of Mormon translated from "gold angelic plates" which profit Joseph Smith found thanks to an angel....who sadly had to take the plates back to heaven, but there are "witnesses" that saw the plates...all his followers.
Muhamed of islam was told what to write by an angel of allah....so say his followers. Does having "faith" in something mean leaving your brain aside and believing just because others do or told you so?