I'd have to agree with luminos on this...as well. Getting the active effects of a power someone else shed refresh for, without even an aspect to back it up, would really take away from the value of the initial power. And, truthfully, if the character's faith is that potent to begin with, that should definitely be highlighted, in some way, through one of their seven character aspects. It could even come from their Trouble (Faith Binds), but it should have more presence foe the character than just (and I am not meaning you did this, only this should be avoided): I should get this because I say my character is faithful!
That would be a dangerous precedent to set, as it could lead to all sorts of abuses in the game. Of course, also as luminos mentioned, if that's how your game rolls, then so be it! Have a grand time and don't let anyone tell you otherwise. Personally, however, it would not fly in my game without some additional requirement behind it (refresh or fate point cost).