@chaney3 said
What motivation did they have to change the story?
Decades of 'chinese whispers' passed on by all manner of people and groups, and sub-groups, all in many respects in competition with each other; dozens of other supposedly 'eye witness accounts' rejected; nothing finalized until literally hundreds of years later, when corporate Christianity had finally finessed its fastidiously assembled text.
I have no doubt that all manner of emotions and elements were in play: earnestness, hysteria, ambition, good-intentions, fervour, imagination, conjecture, melodrama, faulty memory, errors, omissions, assumptions, embellishments, fascination, zealotry, creativity and, yes, most likely deceit as well.
Countless people, over many, many years. What's the upshot of 'survival of the fittest' when accounts of magical things are competing for the hearts and minds of potential subscribers?