In other words, "eat my flesh and drink my blood, but you'll find that it's a waste of your time".
I don't think so. "These words", i.e., the words that I have just spoken to you, are spirit and life. 6:63 intensifies the previous chapter, it doesn't negate it.
LOL
You know what the words mean, why do you squirm?
Papist doctrine is pagan and Pharisaical, and humanist.