Oh but FRiend, I am attending to the words of Christ. For he referred to the wine as blood in Mark 14:24,and in the next verse says:
“Verily I say unto you, I will no more drink of the fruit of the vine, until that day that I drink it new in the kingdom of God.” Mark 14:25
And the emphasis on repentance, and baptism in the name of Jesus for the remission of sins, and the gift of the Holy Ghost, found several times in the book of Acts, as well as referred to in many places in the epistles, shows how one is one with Christ.
The Books in the Bible did not fall from the skies and robotically assemble themselves into the various chapters and verses. Among the thousands of manuscripts, texts, and written evidence, the Holy Spirit bestowed upon the Catholic Church to sort out and put together what is the true Word of God, while casting aside hundreds of other questionable or contradictory writings. This process took nearly three hundred years beginning with early Church fathers and successors to St. Peter.
That authority of the Holy Spirit to locate, cite, and interpret the true Word of Christ did not suddenly disappear with the advent of the Lutheran heresies. This is why the Church has among its adherents, thousands of scholars and theologians who have become converts from every other faith and religion under the sun.