Bob’s misunderstanding vs. 63, but its expected since SDAs use the writings of Ellen G. White to interpret the Scriptures, her writings are the final arbitrator of doctrine. If Bob is reading from The Clear Word Bible then it is understandable why the Word of God is unclear to him.
How could Christ in John 6:63 say to eat His flesh and then state that His flesh is of no avail? Obviously, this refers to mans inclination to think using only what their natural human reason would tell them rather than what God would tell them. In John 8:15-16 Jesus says to His opponents that You judge according to the flesh, I judge no one. Yet even if I do judge, my judgment is true, for it is not I alone that judge, but I and he who sent me. So natural human judgment, unaided by God’s grace, is unreliable; but God’s judgment is always true.
Furthermore, were the disciples to understand the statement by Jesus: The words I have spoken to you are spirit and life as nothing but a circumlocution for symbolic? No one can come up with such interpretations unless he first holds to the Fundamentalist position and thinks it necessary to find a rationale, no matter how forced, for evading the Catholic interpretation. In John 6:63 flesh does not refer to Christ’s own flesh, the context makes this perfectly clear, but to mankind’s inclination to think on a natural, human level. The words I have spoken to you are spirit does not mean "What I have just said is symbolic.” The word spirit is never used that way in the Bible. The line means that what Christ has said will be understood only through faith; only by the power of the Spirit and the drawing of the Father, see John 6:37, 44–45, 65.
As I have said in the past, Paul in 1 Corinthians 10:16 states: The cup of blessing which we bless, is it not a participation in the blood of Christ? The bread which we break, is it not a participation in the body of Christ? So when Catholics receive Communion they are actually participating in the body and blood of Christ, just as Christ’s disciples did. If these were meant to only be symbolic, then why did Paul have to state in 1 Corinthians 11:27, 29: Therefore whoever eats the bread and drinks the cup of the Lord unworthily will have to answer for the body and blood of the Lord. . . . For any one who eats and drinks without discerning the body, eats and drinks judgment on himself. How could eating mere bread and drinking mere wine unworthily be so serious?