Nonconformity to the world is a Christian doctrine based on Romans 12:2:
Contents
Do not be conformed to this world...that became important, especially among Anabaptist groups.
Biblical basis
In addition to Romans 12:2, the doctrine of nonconformity is also based on the following passages:
History
Even though not unique to Anabaptists or Mennonites, the concept of nonconformity has found an unusually intense and detailed application among these groups. Among traditional Anabaptist groups, the majority of them being Old Orders, nonconformity is practiced in relation to dress, the use of technology like horse and buggy transportation instead of cars, the rejection of television and radio, the use of language, that is German dialects like Pennsylvania German, Plautdietsch and others instead of English or Spanish, nonresistance, avoidance of oaths, avoidance of lawsuits, and other questions.