Are you saying it's a continuation of the original crucifixion? If that is so, what was Jesus referring to when He said "It is finished"?
The article above is an excellent example of RCC error as pointed out in the below link.
http://www.freerepublic.com/focus/religion/3026316/posts?page=25#25
No it is not continuation. I am saying what I, and Ua Ruairc of Bréifne, said to you already: it is the same sacrifice that we become part of across time.
Read your Old Testament! The death of the sacrificial victim at the hands of the priest *begins* the sacrificial liturgy, it doesn't conclude it. The victim still has to be offered to God at the altar, and then parts are consumed by the priest and the layperson making the offering.
Hebrews makes it clear that the "offering" part of Christ's sacrifice is taking place (and has taken place, and will take place tomorrow) in heaven, which is eternal and therefore outside of time. The Mass makes this sacrificial offering present to us on earth, in time.
The Catholic Church does not teach, and has never taught, that Jesus is "re-sacrificed" or "sacrificed again" in the Mass. That's a calumny invented by John Calvin. It's a lie, pure and simple. Who does Jesus identify in Scripture as the "father of lies"?