How can what you do Sunday after Sunday be the same sacrifice?
(I can't address all your questions at once. This one seems crucial to me.)
Short answer: we have a very different idea of time from the one which many non-Catholics seem to hold. For us, eternity is not a very long time or an infinite duration of time. It is beyond time.
To us, this doesn't need to be in Scripture because, after some thought, it is plain in itself, "self-evident"not in the sense of obvious but in the sense that our perception of time and change implies necessarily that there is an eternity outside of time. To us, at least, mere consideration of time and change necessarily implies a changeless and an "outside of time."
Because our language is temporally based it is fundamentally inadequate to the expression of eternity. But it may suffice to say that in eternity, which comprehends temporality, all is "Now."
In the Mass we "access" that "now".
It is one thing to say, "I do not understand and do not agree with your concept of time, so I do not see how the Mass is not a re-sacrifice," and another to say "You (attempt to) re-sacrifice Christ."
Mad Dawg wrote:
“I can’t address all your questions at once. This one seems crucial to me.”
From there you proceed to tell me what you feel to be truth, with no Scripture. That is all very nice, but entirely unconvincing.
You also didn’t answer what was really the key and only question I asked you. So, did you purposely evade it or are you simply wrapped up in what “seems crucial to me”?
Here is what I asked and you evaded:
“Let me ask you this: Why does the magisterium of the Catholic church insist that the mass is a sacrifice and that this is the “essential” difference between the practice it continues and the practice of the Reformation? What is the sacrifice accomplishing?”