Take a close look at the dates.
St. Cyril of Jerusalem was born just about the time the Emperor Constantine legalized Christianity in the Roman Empire (313 AD) and became bishop of the Holy City of David about 349AD.
This saint's testimony dates back to the earliest years of the Church. He is precisely describing authentic christian worship. Freeper eastsider has posted an excerpt from the saint's writings describing the early christian church, demonstrating that he is following the command of Jesus Christ in John 6:53–56.
The question, however, is why you, doubting the words of Jesus Christ, have declared this a sin.
You can give that nonsense a break. Six of the seven churches addressed in Revelation has already gone off track. Now you want us to appeal to someone over 200 years later? What kind of nonsense is that?
>>The question, however, is why you, doubting the words of Jesus Christ, have declared this a sin.<<
I don't doubt the words of Jesus. He said His words were spirit. It was against the law to eat blood and Jesus was obligated to follow all laws or He would have been sinning. That would have rendered Him incapable of being the sinless sacrifice.
Have you read your Bible? I’ll answer that “no” you haven’t. If you had you would realize that some Churches had went off track within months of being preached to by Paul which would be just a few decades from Christ’s crucifixion. Just for starters try reading Galatians and there are others to see how quickly false teachers twisted the word. So for you to say that a man preaching 250 years afterwards is so right is just foolish at best.