Most of the people who had been learning from Jesus walk away.
In John chapter 6, Jesus feeds thousands of people who had been following Him. He does this by miraculously dividing the contents of a small lunch, leaving more left over than He had to begin with. At first, the crowd is amazed and they enthusiastically praise Jesus. After sending the disciples across the Sea of Galilee, and rescuing them from a storm by walking on the water, Jesus once again addresses the crowd. This time, He emphasizes the spiritual lesson behind His prior miracle. In response, most of those who had been praising Jesus turn away from Him in disappointment.
John 6:53-69
“So Jesus said again, “I tell you the truth, unless you eat the flesh of the Son of Man and drink his blood, you cannot have eternal life within you. 54 But anyone who eats my flesh and drinks my blood has eternal life, and I will raise that person at the last day. 55 For my flesh is true food, and my blood is true drink. 56 Anyone who eats my flesh and drinks my blood remains in me, and I in him. 57 I live because of the living Father who sent me; in the same way, anyone who feeds on me will live because of me. 58 I am the true bread that came down from heaven. Anyone who eats this bread will not die as your ancestors did (even though they ate the manna) but will live forever.” 59 He said these things while he was teaching in the synagogue in Capernaum. 60 Many of his disciples said, “This is very hard to understand. How can anyone accept it?” 61 Jesus was aware that his disciples were complaining, so he said to them, “Does this offend you? 62 Then what will you think if you see the Son of Man ascend to heaven again? 63 The Spirit alone gives eternal life. Human effort accomplishes nothing. And the very words I have spoken to you are spirit and life. 64 But some of you do not believe me.” (For Jesus knew from the beginning which ones didn’t believe, and he knew who would betray him.) 65 Then he said, “That is why I said that people can’t come to me unless the Father gives them to me.” 66 At this point many of his disciples turned away and deserted him. 67 Then Jesus turned to the Twelve and asked, “Are you also going to leave?” 68 Simon Peter replied, “Lord, to whom would we go? You have the words that give eternal life. 69 We believe, and we know you are the Holy One of God.”
Most of the people who had been learning from Jesus walk away. They completely abandon His teachings and His ministry. Since they do not like what He has taught (John 6:60), their response is to choose their own preferences over the truth. This illustrates the enormous difference between those who show interest in Christianity, versus those who are actually believers in Jesus Christ. Hanging out with the crowd, and applauding at miracles is not the same as accepting Christ as one's Savior. As soon as the "followers" were put under pressure, they proved that they were not "believers" by walking away.
That context makes this verse all the more interesting. Jesus now asks the twelve members of His inner circle whether they plan to leave also. What's curious about this is that one of them, Judas, is not a believer either (John 6:71).
Following the call of Jesus and fulfilling his mission won’t be easy or comfortable, in fact people will criticize and ridicule you, some leave and abandon you, and others will oppose you.
Even Jesus himself experienced this. However we should fix our eyes on Jesus the author and perfecter of our faith and push forward. At the end of our life I want to stand before God and hear ‘Well done , good and faithful servant”