Having faith in a person, a spouse perhaps, doesn’t require any specific action from the one in whom you have faith. It is a matter of sheer trust. It is open-ended: My faith in Christine is based not on facts I know about her (though they certainly enter in), but on my relationship with her, my experience with her. Faith in her doesn’t require her to do something, as in “I have faith that she will win the race.” It just requires her to be her. Faith in a person is trusting the character of the person. And that comes from relationship–shared experience over time.