Stuck in the Middle: Between “Nestorian” and “Eutychian” Reformers

Confessional Lutheran Christology Part I

When it comes to Luther’s Christology and that of the subsequent Lutheran tradition, we must tread a fine line between the Scylla of claiming the Reformer was an absolute innovator and the Charybdis of claiming there was no meaningful difference between Luther and his medieval predecessors. There are, in fact, some interesting differences between confessional Lutheran teaching and the previous medieval tradition. However, the Lutheran Reformers were faithful students of Scripture and the ancient Church. Discontinuities existed between Lutherans and their medieval predecessors because the Reformers drew out the logic of biblical and patristic Christology. The seeming innovations of Lutheran theologians regarding the metaphysics of the Incarnation were, in fact, valid extensions of enhypostasis-anhypostasis Christology, sometimes termed “Neo-Chalcedonianism.”1

Throughout his career, Luther fought on the same two fronts that the ancient Church had. Like the early orthodox Church Fathers, Luther found himself combating both Nestorian and Eutychian Christological tendencies. As we will see below, in Luther’s mind, the Swiss Reformer Ulrich Zwingli played the role of Nestorius. Kaspar Schwenckfeld played the role of Eutychus. Most popular accounts of Luther focus on the Reformer’s conflict with Ulrich Zwingli and his belief that Zwingli was essentially Nestorian. Sadly, this tends to distort the truly balanced nature of the Reformer’s Christology (i.e., rejecting both Nestorian and Eutychian tendencies), and therefore undercuts his continuity with the earlier tradition. 

Luther’s Conflict with Zwingli and “Nestorianism”

Nestorian Christology

The major source of strife between Luther and Zwingli was the doctrine of the Lord’s Supper.2 We will return to this conflict again in a future chapter, but it is worth touching on here because there was a Christological issue at the heart of the Reformers’ debate over the Eucharist. Zwingli, following an undercurrent in medieval theology, argued that there could be no substantial presence of Christ in the Lord’s Supper because, as true man, he could not be present in multiple locations simultaneously. 

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