John 21:16-19

He then asked a second time, “Simon, son of John, do you love me?” “Yes, Master, you know I love you.” Jesus said, “Shepherd my sheep.” Then he said it a third time: “Simon, son of John, do you love me?” Peter was upset that he asked for the third time, “Do you love me?” so he answered, “Master, you know everything there is to know. You’ve got to know that I love you.” Jesus said, “Feed my sheep. I’m telling you the very truth now: When you were young you dressed yourself and went wherever you wished, but when you get old you’ll have to stretch out your hands while someone else dresses you and takes you where you don’t want to go.” He said this to hint at the kind of death by which Peter would glorify God. And then he commanded, “Follow me.”