In MTG, when damage is Redirected from a player to a creature where does that damage actually come from?

Question

for instance: if a player has weathered bodyguards in play and gives it protection from creatures, will the damage from an unblocked 6/6 destroy it because it is being 'redirected' from the player to the creature, OR will the damage be prevented because it is still being done by a creature?

Answer 1

Redirecting the damage does not change its source. So if your bodyguards have protection from creatures and you redirect the damage, the damage will be prevented.

Answer 2

Yes it will be prevented. Just remember that a creature from protection from something can't be blocked, dealt damage, enchanted, destroyed, targeted by anything it has protection from.  

Answer 3

protection does a lot of things, but in this case, any damage dealt to it by creatures would be prevented. The damage is still coming from a creature, so after being redirected, it's prevented.