The Reformation was a reaction against the externalism of Rome in general, and in particular, also against its external conception of the Church. It brought the truth to the foreground once more that the essence of the Church is not found in the external organization of the Church, but in the Church as the communio sanctorum. For both Luther and Calvin the Church was simply the community of the saints, that is, the community of those who believe and are sanctified in Christ, and who are joined to