Faith, Philosophy, and the Nominalist Background to Luther's Defense of the Real Presence

Recent scholarship has brought into question the traditional interpretation of Luther as being hostile towards philosophy. ¹ Graham White claims that Luther holds a place in the history of logic as a member of the Nominalist tradition. ² Bruce D. Marshall argues that Luther and Thomas Aquinas fundamentally agree on the relationship between faith and reason. ³ Both scholars recognize that Luther himself stressed the importance of logic and used late medieval philosophical techniques. Although I agree with this scholarship that Luther's thought must not be understood in isolation from late medieval thought, I will argue that Luther uses philosophical ideas in a way which conflicts with that of the scholastic tradition. The focus here is on Luther's understanding of the relationship between faith and reason in the context of Luther's controversy over the Eucharist with the Swiss sacramentarians, among whom Zwingli and Oecolampadius were the most prominent. ⁴ Although Luther uses philosophical distinctions to argue against what he thinks are misinterpretations of the Bible, he does not in any explicit and systematic way use philosophy to arrive at a theological understanding of the Eucharist. Luther differs from his scholastic predecessors in that he uses philosophy not to develop theological conclusions but only to attack errors about the Bible, and so the concern here is with Luther's use of Nominalist doctrines about presence in his attack on the sacra-mentarians' belief that Christ cannot be present both at the right hand of God and in the Eucharist at the same time.

In his discussion of the Eucharistic doctrine which is presented in The Babylonian Captivity of the Church (1520), Luther not only argues against the Catholic doctrine of the Eucharistic sacrifice but also against transubstantiation. ⁵ Luther explicitly states that he was influenced on this issue by Peter D'Ailly, a Nominalist follower of William of Ockham. D'Ailly and other Nominalists thought that transubstantiation was not the only possible way that Christ could be present in the Eucharist, since if God wished he could also make Christ present along with the substance of the bread and wine. ⁶ From a Nominalist perspective transubstantiation requires two actions of God, namely, the annihilation of the substance of the bread and the placement of Christ's body under the species. Therefore, consubstantiation would be a simpler account of Christ's Eucharistic presence. If Christ's body were present along with the substance of the bread annihilation would not have to occur. But D'Ailly and the Nominalists argue that we know from Church authority that the real presence occurs through transubstantiation. On this issue the Nominalists differ from Thomas Aquinas, who gives philosophically-based arguments against consubstantiation. ⁷ When Luther attacks Thomas, he attacks not so much the use of philosophy in theology as Thomas's philosophy: "But this opinion of Thomas hangs so completely in the air without support of Scripture or reason that it seems to me he knows neither his philosophy nor his dialectic." ⁸

Since the Nominalist belief in transubstantiation rather than consubstantiation rests on an acceptance of Church authority, the rejection of such authority would seem to lead to a rejection of transubstantiation. If Luther had assented to traditional Nominalist theology with the sole exception of its reliance on Church authority, one would expect him to argue for the necessity of consubstantiation. However, Luther sees himself as rejecting an unnecessarily philosophical theology in a return to a more biblical faith. ⁹ Luther claims that he argues for a particular understanding of the Eucharistic presence but rather "that every one may feel at liberty to ponder, hold, and believe either one view or the other without endangering his salvation." ¹⁰ Although Luther's training in Nominalist theology leads him to think that consubstantiation is possible, he at no point argues that a belief...