54 Whoso eateth my flesh, and drinketh my blood, hath eternal life; and I will raise him up at the last day.
Eating blood, shedding blood, drinking blood are all phases used in a parable to mean Christ put His Spirit life in jeopardy for every sin I will commit. The tokens used to show,declare a dead body, reveal a finished work of faith.

Do you really want to put that dead body, back on the cross and expose Christ to public shame for not finishing the work ?

Joh 19:30 When Jesus therefore had received the vinegar, he said, It is finished: and he bowed his head, and gave up the ghost.

Does it offend you, that the work our living God, Christ Jesus did was spiritual in nature and not of the flesh

Joh 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.