Do you love me? (John 21:16) The word feed here is a different Greek word, and it literally means “to tend my sheep, or to watch over my sheep, to be a shepherd over my sheep, take care of my sheep.” And he said unto him a third time, Simon, son of Jonas, loves thou me?
It reads in John21:16-21
Again, Jesus said, “Simon son of John, do you love me?” He answered, “Yes, Lord, you know that I love you.” Jesus said, “Take care of my sheep.” The third time he said to him, “Simon son of John, do you love me?” Peter was hurt because Jesus asked him the third time, “Do you love me?” He said, “Lord, you know all things; you know that I love you.” Jesus said, “Feed my sheep. Very truly I tell you, when you were younger you dressed yourself and went where you wanted; but when you are old you will stretch out your hands, and someone else will dress you and lead you where you do not want to go.” Jesus said this to indicate the kind of death by which Peter would glorify God. Then he said to him, “Follow me!” Peter turned and saw that the disciple whom Jesus loved was following them. (This was the one who had leaned back against Jesus at the supper and had said, “Lord, who is going to betray you?”) When Peter saw him, he asked, “Lord, what about him?”
Jesus made several Miraculous Appearances in the First Century. These Various Appearances of Christ during and shortly after the Jewish War are a Climatic Exemplification and Fulfillment of All the Ways in which God appeared to People in the Bible. They also Literally Fulfill Every Prophecy on the Second Coming.

What if I want John to remain until I come? What concern is it of yours? (John 21:22-25)
Jesus answered, “If I want him to remain alive until I return, what is that to you? You must follow me.” Because of this, the rumor spread among the believers that this disciple would not die. But Jesus did not say that he would not die; he only said, “If I want him to remain alive until I return, what is that to you?” This is the disciple who testifies to these things and who wrote them down. We know that his testimony is true. Jesus did many other things as well. If every one of them were written down, I suppose that even the whole world would not have room for the books that would be written.