Between 1548 and 1551, controversies over adiaphora, or indifferent matters, erupted in both Germany and England. Matthias Flacius Illyricus in Germany and John Hooper in England both refused to ...accept, among other things, the same liturgical vestment: the surplice. While Flacius' objections to the imperial liturgical requirements were largely contextual, because the vestments and rites were forced on the church and were part of a recatholicizing agenda, Hooper protested because he was convinced that disputed vestments and rites lacked a biblical basis. The Devil behind the Surplice demonstrates that, while Flacius fought to protect the reformation principle of justification by grace alone through faith alone, Hooper strove to defend the reformation principle that Scripture alone was the source and norm of Christian doctrine and practice. Ultimately, Flacius wanted more Elijahs, prophets to guide a faithful remnant, and Hooper wanted a new Josiah, a young reform king to purify the kingdom and strip it of idolatry.
The Croatian-born Matthias Flacius Illyricus (1520–1575) was a Lutheran theologian and reformer who spent most of his adult life in the German-speaking territories of the Holy Roman Empire, playing ...an important role within the Evangelical churches and in the confessionalization of his day. Luka Ili? establishes that Flacius’ theology became increasingly radicalized with time and examines aspects of this process through following two parallel tracks. One trajectory focuses on the development of Flacius’ theological thought, while the other one discusses the pivotal influences and major turning points in his life, such as being exiled from different cities. Although Flacius did enjoy some measure of success and even attracted a considerable number of followers for shorter periods of time, his radicalized theology ultimately led to his public downfall and marred his legacy. Flacius’ relationships with the most important Wittenberg figures, Luther and Melanchthon, are also explored, along with the vast personal and professional networks Flacius built up in imperial cities, all of which shaped his theological development. One of the dominant claims is that Flacius’ understanding of original sin and of grace were the lynchpin for much of his opus. At the same time, the findings demonstrate that Flacius was a multifaceted individual with interest and competences in a number of different academic fields.