Though some (or all) of their members are Christian, and there seems to be a big debate about whether they are a Christian band or not. In an interview from Jesusfreakhideout.com, Matt says a few words about it:
"I think faith is a personal thing. I have nothing against bands that are Christian bands or claim to be Christian bands because I think what they're doing is following conviction and that's honorable. It's honorable to be committed to do something about it but for us, personally, we don't really understand it. So we kind of steer clear. I'm a Christian so the music I write is about real struggles with real people and real situations that have happened in my life and there's obviously sort of a Christian outlook. There's hope. There's something that goes beyond just the human struggle. But I wouldn't call our music "Christian music," I think it's "human" music. *laughter* For humans! So…"
That's why I placed this in Secular Bands.