In John 6: Jesus didn’t say “Hey, folks, step right up for one time only eat my flesh and drink my blood.” NO. He meant it was on “forever” offer.
Accept no imitations. The Mass stands OUTSIDE of time.
I tried to explain this to a number of our separated brethren several months ago and got the prot version of covering their ears and repeating "I can't hear you la la la.
It’s a matter of using the entire passage and discussion to obtain the meaning. The John 6 passage on eating and drinking starts out concrete and then the use of similtude to explain the concrete truth. Jesus uses the same method of similtude in John 4 as I shared with gemoftheocean:
John 4:10-24 NASB
Jesus answered and said to her, “If you knew the gift of God, and who it is who says to you, ‘Give Me a drink,’ you would have asked Him, and He would have given you living water.” She said to Him, “Sir, You have nothing to draw with and the well is deep; where then do You get that living water? You are not greater than our father Jacob, are You, who gave us the well, and drank of it himself and his sons and his cattle?” Jesus answered and said to her, “Everyone who drinks of this water will thirst again; but whoever drinks of the water that I will give him shall never thirst; but the water that I will give him will become in him a well of water springing up to eternal life.”
The woman said to Him, “Sir, give me this water, so I will not be thirsty nor come all the way here to draw.” He said to her, “Go, call your husband and come here.” The woman answered and said, “I have no husband.” Jesus said to her, “You have correctly said, ‘I have no husband’; for you have had five husbands, and the one whom you now have is not your husband; this you have said truly.” The woman said to Him, “Sir, I perceive that You are a prophet. Our fathers worshiped in this mountain, and you people say that in Jerusalem is the place where men ought to worship.” Jesus said to her, “Woman, believe Me, an hour is coming when neither in this mountain nor in Jerusalem will you worship the Father. You worship what you do not know; we worship what we know, for salvation is from the Jews.
But an hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for such people the Father seeks to be His worshipers. God is spirit, and those who worship Him must worship in spirit and truth.”