In this essay I present an outline and examination of the Finnish Luther research, withan aim to learn more about some different aspects of Luther?s teaching on justificationas sanctification, and sanctification as the growth of the new man. I will also draw myattention to the formal language of metaphysics, as it is continuously employed by Luther to depict the issues and the content of his reformation theology. Apart from the program of research in Helsinki, I have turned to the writings of Luther himself; and I have as well tried to engage in a broader survey of Luther-scholars, some of which seem to, or in fact, support the Finnish interpretation, others which raise a critical stance towards it. The later portion of the essay picks up on the Finnish critique of dominant 19th and 20th century German Lutheran theologians, such as Albrecht Ritschl and Gerhard Ebeling.