Keeping in mind that there are two questions: 1) what did Jesus mean by those words, and 2) when did Christians form the opinion that what he meant was the Real Presence of the Last Supper. Now obviously a Catholic raised on the belief in the Real Presence is going to make the inference that 1) Jesus means taking comunion but even so it does not follow from this passage that this was the understanding in 65AD. We might, for example, ask Protestants why they don’t read those words as proof of Real Presence.
Well, I am not one of those Catholics

I was not even a Sacramental Protestant or even one of the growing number of “bible Christians” who believe in more than a symbolic communion. The only Christian Churches I was in were symbolic only Christian Churches.
I truly believe I was led to this by the Holy Spirit. It was not until AFTER I felt convicted, I actually researched the Catholic arguments which solidified my belief.
As I do not speak or read any language but English ( and un poco de Espanol

), I particulary liked
scripture Catholic and their breakdown of the language of John 6 discourse.
If this language had not been so strong, and repeated even more emphatically by Christ, you might have a point. And while the average Christian of the time might not have understood exactly, which I think we can safely say there were at least some who did not believe or there would not have been so many strong statements by ECF, I do not think you can make a case that John whom taught Ignatious and was one of the first saved writings defending the Real Presence, did not understand.
So I guess I could concede that there may have been some Christians who did not have the belief in the Real Presence, I just do not think there can be a strong case made for those who were teaching that the concept of the Real Presence was a development of doctrine in the same way as Mary has been, due primarily to the strong language of John 6 discourse of which the apostles were front and center.
Here is one thing to keep in mind: creating the Real Presence is not something that Catholics believe anyone can accomplish, no matter how pious and holy. Real Presence is the product of a Catholic Priest conducting a Catholic Mass.
Now you might say, hey, the Apostles were proto-priests. But they would not have thought of themselves as that so long as the Jewish Priesthood survived.
I disagree. It is laid out in Acts how to pick and replace the apostles. We also see a list of requirements for those who would be the authorities over others in the Church so I think they absolutely saw themselves as the ruling authority over Christians, and I am sure the whole “keys of the kingdom” being given to Peter it was absolutely seen as transfering power from the old covenant to the New.
Well, sure. At least you can see the general idea.
Absolutely.
Absolutely
God Bless,
Maria