To be charitable, maybe what they mean is "Just try to be a good person and don't rules-lawyer it".
There's something to be said for that attitude. But they sure picked a weird way to express it.
I don't think they actually want to forbid non-Christians from contributing code, but that's the literal reading of what they said.
@nindokag yeah i looked it up and like it seems to be serious? the guy just happens to be a Christian, so he decided his project should fully reflect that. ...I can't imagine why it has to be the ENTIRE THING