Mark 14:27-31
“You will all fall away,” Jesus told them, “for it is written:
“‘I will strike the shepherd,
and the sheep will be scattered.’
But after I have risen, I will go ahead of you into Galilee.”
Peter declared, “Even if all fall away, I will not.”
“Truly I tell you,” Jesus answered, “today—yes, tonight—before the rooster crows twice you yourself will disown me three times.”
But Peter insisted emphatically, “Even if I have to die with you, I will never disown you.” And all the others said the same.
John 21:1-19
When they had finished eating, Jesus said to Simon Peter, “Simon son of John, do you love me more than these?”
“Yes, Lord,” he said, “you know that I love you.”
Jesus said, “Feed my lambs.”
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!”