64But there are some of you who do not believe.” Jesus knew from the beginning the ones who would not believe and the one who would betray him.
27Do not work for food that perishes but for the food that endures for eternal life,* which the Son of Man will give you. For on him the Father, God, has set his seal.”
48I am the bread of life. 49Your ancestors ate the manna in the desert, but they died;z 50this is the bread that comes down from heaven so that one may eat it and not die. 51I am the living bread that came down from heaven; whoever eats this bread will live forever; and the bread that I will give is my flesh for the life of the world.”
You stated: So please answer the question. If it’s an “unbloody sacrifice” how can you literally be drinking blood?
So you doubt the word of God in the Bible?
Transubstantiation reflects Roman Catholic faith in the literalness of the words of the Bible.
Jesus (omnipotent God) said: “This is my body; this is my blood.” And again Jesus said: “I am the bread of life;” “My flesh is true food; my blood is true drink;” “He who eats my flesh and drinks my blood ...;” etc.
Roman Catholics take Jesus at His word: the bread is his body; the wine is his blood.
From the Apostles at the Last Supper until today, the bread and wine of Eucharist looks and feels and tastes like bread and wine in the eating and drinking.
Similar to all of God’s Word, faith is essential. Faith in what? In the words of Jesus even though the bread does not look, feel, taste like flesh; even though the wine does not look, feel, taste like blood.
Transubstantiation means the substance part of the bread and wine elements changes; but the accidental parts—sight, taste, smell, touch—do not. Catholics believe that since Jesus said it and He is God, he can do it. They believe! “Transubstantiation” merely labels it.
In everyday life, it is not at all uncommon to believe in things man cannot perceive by the senses: wind, electricity, love, peace, etc. All the more when Jesus says it.
So much for the "unbloody sacrifice". Jesus said it was NOT the real, physical flesh.
John 6:63 It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.
But still Catholics insist it's the flesh. No, Catholics don't take Jesus at His word.