[Mad Dawg]

This is true. Likewise, a priest can consecrate ordinary wheat bread and fermented grape wine and they become the body and blood of Jesus Christ. I'm not talking about the kind of bread. I'm recalling that if we assume (as I would) that this was a passover meal (Dom Gregory Dix to the contrary notwithstanding) that there are different cups and different loaves throughout the meal. It is not clear to me that Jesus ate of the particular loaf he declared to be His body. That was the distinction I was drawing.

[annalex]

My argument is with blue-duncan. Yes, it is not clear whether Jesus ate of the same bread He called His body either.

I would also agree that the Last Supper, while a prefigurement of the Mass, has aspects that make it distinct from the Mass: the Sacrifice of the Cross lay in the future rather than the past; Christ was present in the ordinary way and not only eucharistically, the context was a Passover Seder.

This is, by the way, the point recently made by the Pope to the New Catechumens: that it is possible to go too far in recreating the Last Supper liturgically.