I recently had occasion to attend a service at a Mennonite church. Now, Mennonites can range from practically Amish to standard evangelical. These were by most appearances practically Amish; the congregation was dressed in home-made Amish-style clothing and there were no instruments during worship (although the words to the song were projected from a Macbook). Clearly, an insular group, unfamiliar with other ways of life.
The first part of the service was about efforts to rehabilitate ISIS sex slaves. The second part was a talk by Brother Yun, a major figure in the Chinese house church movement.