For some people, being a Christian is a very safe thing to do. It's basically inward-directed. It has to do with my thoughts, and my feelings. And the activity of the church is pretty inward-directed, too. It has to do with maintenance, and preservation, and safety.
People come to church because it's a very safe place.
We avoid conflict, and we avoid risk. Even liberal churches can have this kind of outlook, which makes them very conservative places. If you experiment, the purpose of the experiment is to try and make things safer. Above everything else, avoid risk. By contrast, I think that the kind of church Jesus had in mind in this morning's passage from Mark's gospel was a risk-taking church .