She tells him at one point that “fighting temptation makes you strong.” Everyone in the movie seemed to be fighting temptation of some sort - whether that be avarice, covetousness, pride, etc. I think the name, like their final song, was just to acknowledge that nobody’s perfect, but as long as you’re trying your best, you’re going to be God-loved. It’s a weird thing in churches - which I think the movie portrays pretty well - that they often expect you to be perfect in order to attend church rather attend church in an effort to become perfect. It’s the kind of hypocrisy that not only drives people away, but gives the excuse to sometimes look down on people (e.g. “I don’t like homosexuality. I go to church, which makes me perfect, which means I’m right and I don’t need to listen to you at all.”)
Did anyone else have an issue with them kicking Paulina out of the group at the end? I get that she was awful, but it felt very bully-ish the way the did it, and not very “Christian.” I think it would be far more emotionally satisfying to see her won over to their way of thinking, rather than just kicking her to the curb and showing us over the credits that in the ensuing 18 months they somehow came to some kind of understanding.