What would be the purpose in telling his plan to unbelievers? Here's what he had to say:
Matthew 13:10 And the disciples came, and said unto him, Why speakest thou unto them in parables? [11] He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
It was enough that they were in unbelief. Why on earth would he have chased after them knowing they'd betray his plan. Why would God risk that.
1 Corinthians 2:7 But we speak the wisdom of God in a mystery, [even] the hidden [wisdom], which God ordained before the world unto our glory: [8] Which none of the princes of this world knew: for had they known [it], they would not have crucified the Lord of glory.
If you're gonna invade Europe and liberate it's people, you don't march up to a group of nazis and start telling them your D-Day plans. If we're smart enough to get this, do you suppose Christ was at least half as smart given that he took the same position.
Christ wasn't talking about giving them his flesh to eat. He was telling them in form of a parable that they would have to destroy his body in sacrifice. And they eventually did. But they didn't eat him to accomplish it. Nor must we. Our job as he said over and over and over up to the point of coming out and saying he was going to die for us is and was to believe on him whom God had sent. To believe every word that flowed out of the mouth of God that we might have eternal life. That group of words to be believed in this case was that Christ must die for our sins. We had to believe that. The Apostles didn't even fully get it till Christ told them in private what he'd been saying in parable.. at which time even Peter rebuked him causing Christ to respond, saying "get thee behind me Satan.."
But, you guys think Eisenhower should have run after the nazis yelling, "Normandy. We're attacking at Normandy with X number of troops, X number of ships, landing craft planes, on this date and here's the time you should expect us.." Thankfully, neither Eisenhower or Jesus were that dumb.