Reformation of Doctrine
[The Protestant Orthodox] recognized that the claim of Protestantism to represent the church could be maintained only if the witness of the Reformation proved to be the key not only to the reform of a series of ecclesiastical abuses but also to the reformulation of the body of Christian doctrine.
Muller, R. A. (2003). Post-Reformation reformed dogmatics: the rise and development of reformed orthodoxy; volume 1: prolegomena to theology (2nd ed., p. 28). Grand Rapids, MI: Baker Academic.