Not mere Christianity

The Church is not a people united by common ideas, ideas which collectively go under the name of 'Christianity'. When the Bible speaks of a people united by faith it does not simply mean that we have the same beliefs about reality. Though the New Testament does use 'faith' to refer to a set of teachings (e.g., 1 Cor 16:13; 1 Tim 4:1; 2 Tim 4:7), 'faith' stretches out to include one's entire 'stance' in life, a stance that encompasses beliefs about the world but also unarticulated or inarticulable attitudes, hopes, and habits of thought, action or feeling. To be of 'one mind' (Phil 1:27) means to share projects, aspirations, and ventures, not merely to hold to the same collection of doctrines. (p14  Against Christianity)