“What is the blood of the saints?
The blood of the saints could be nothing but the blood of Jesus, which is represented by the wine which is drink from the golden cup.”
Jesus is the Son of God, not a saint, and certainly not multiple saints. This idea of “blood of the saints” comes from the Old Testament. Go back to the story of Cain & Abel: Abel’s blood cried out to God from the ground, and then God told us:
“6 Whoso sheddeth man’s blood, by man shall his blood be shed: for in the image of God made he man.” Gen 9:6
It is a symbol that is used throughout the Bible to refer to victims of murder that God is going to wreak vengeance for. Jesus accused the Pharisees of being accountable for the blood of the prophets, just as Cain was accountable for the blood of Abel, and just as God tells us the harlot is accountable for the blood of all the prophets and saints.
What about the blood of the Good Thief crucified with Jesus?
Jesus told him “Today you will be with me in paradise.”
That “paradise” was a waiting place for all the people before Jesus’ crucifixion — they were waiting for Jesus to open up heaven by being the First One to Enter Heaven.
Jesus is the Son of God, not a saint,
He told his Apostles to do this in remembrance of him.
The Catholics say that the wine actually turns into Christ`s blood so could be called the blood of the saints since they say that the apostles also believed that the wine actually turned into blood.
It has nothing to do with actual blood, it has to do with being drunk on false doctrine.