On the night of his betrayal, the Lord instituted the Eucharist with the simple words, “Take, eat; this is my body… Drink of it, all of you, for this is my blood of the covenant, which is poured out for many for the forgiveness of sins” (Matthew 26:26-28). A multitude of arguments have been employed against taking those words to mean that in the distribution of the bread and wine, he gave his disciples his body to eat and his blood to drink. Jesus could not possibly have done so while remaining truly human, according to Zwingli, Calvin, and a plethora of denominations following them. Other arguments are less philosophically sophisticated. Perhaps the most common seeks to cast doubt on a literal reading of the words of institution by pointing to figures of speech Jesus used, as when he said, “I am the door” and “I am the true vine.” This argument indeed proves that Jesus sometimes spoke metaphorically, as everyone already knows, but falls short of providing any evidence that he did so in his Last Supper. As relevant as such expressions may be to interpreting “I am the true bread” as non-Eucharistic, their structure is not sufficiently close to that of “This is my body” (Pieper 1953, vol. 3, 305-311) to take the argument as more than a rhetorical ploy. In fact, it has more force when reversed: there would be no need to use obviously metaphorical passages to bolster a claim that the words of institution are metaphorical if those words were just as clearly metaphorical. As much as these kinds of arguments are advanced in debate, the real reason for much of the opposition to a more straightforward reading of Christ’s words may lie elsewhere. Among Protestants, a particularly strong motive for taking the words of institution symbolically is the desire to distance themselves from Tridentine Catholicism, especially from its idea of sacrificing Christ in every mass. The doctrine of the real presence of Christ’s body in the bread and his blood in the wine is seen as synonymous with the doctrine of the priest’s offering Christ as a sacrifice, even though the former does not imply the latter …

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