In Chapter 4, I turn to Luther’s early exegesis of Rom 3, as seen in his lectures from 1515. In contrast with Luther’s own description of his “Reformation breakthrough” later in life, I argue that Luther did not arrive at his new understanding of justification in a flash of inspiration inspired by Augustine; rather, his early treatment of Romans is unimpeachably Catholic and unmistakably Augustinian, although there are indications even in this early work that Luther is not entirely satisfied with Augustine’s view. In Chapter 5, I consider the ways in which Luther’s followers develop his critique of the Augustinian reading of justification in the first generation of the Reformation. Throughout this period, it was unclear whether Protestant exegesis of Paul would resolve itself into a repristinization of patristic theology, inspired in large part by Augustine, or whether it would develop into something genuinely new. The key turning point, I argue, came in the early 1530′s with Melanchthon’s rejection of Augustine’s transformative model of justification, and his adoption in its place of a strictly forensic construal of Paul’s key terms. Many of Melanchthon’s fellow reformers continued to operate within an Augustinian framework, however as Melanchthon’s terms passed into wider acceptance in Protestant exegesis, it became increasingly apparent that the Protestant reading of Paul could not ultimately be reconciled with patristic accounts of justification.

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