I don't think
Faith is too common. I actually don't know anyone with this name.
I do know a girl who has it for a middle name. She is called
Amelia Faith and she is seven years old and very sweet.
I don't think the parents of a child named
Faith would be religious.
Faith does not have to mean religious faith, does it?
I like this name but I don't love it. I would maybe use it as a mn. I imagine someone called
Faith to be quiet, dreamy and fair-haired.