67 Then said Jesus to the twelve, Do you not also want to go away?
68 Then Simon Peter answered him, Lord, to whom shall we go? You have the words of eternal life.
69 And we have believed and have known that you are the Christ, the Son of the living God.
When Jesus talked about Himself as the “bread of life,” many of His followers were troubled. They didn’t realize that He was using figurative language and this sounded cannibalistic to them. The underlying reason is their lack of faith. But Jesus knew all along those who are not believing (Jn. 6:64).
The passage in John 6:50-58 has also been grossly misinterpreted to support the teaching called “transubstantiation” – that is, “the change of the whole substance of the bread into the substance of the body of Christ and of the whole substance of the wine into the substance of his blood.”
Studied carefully, these passages simply teach that in order to receive eternal life one must receive the Lord Jesus Christ who gave His body and shed His blood in behalf of sinful humanity.
Nonetheless, we find in this occasion one of the most eloquent declarations of faith in Jesus as the Christ and the hopelessness of turning to someone else for salvation.
 Gadiel T. Isidro, Isidro Annotated New Testament (Cebu: Gadiel T. Isidro, 2005), 145.
 “What is Transubstantiation?” Cited Sept. 7, 2011. Online: http://www.gotquestions.org/transubstantiation.html.