"Truly, truly, I say to you, unless you eat the flesh of the Son of Man and drink His blood, you have no life in yourselves. He who eats My flesh and drinks My blood has eternal life, and I will raise him up on the last day. For My flesh is true food, and My blood is true drink. He who eats My flesh and drinks My blood abides in Me, and I in him. As the living Father sent Me, and I live because of the Father, so he who eats Me, he also will live because of Me. This is the bread which came down out of heaven; not as the fathers ate and died; he who eats this bread will live forever."
It is often suggested that the consumption of Jesus' flesh and blood referred to in this passage is simply a graphic way of illustrating faith in Him. The parallel between verses 40 and 54 is used to defend this interpretation:
"For this is the will of My Father, that everyone who beholds the Son and believes in Him will have eternal life, and I Myself will raise him up on the last day." (verse 40)
"He who eats My flesh and drinks My blood has eternal life, and I will raise him up on the last day." (verse 54)