John 21:20-22

20Peter turned around and saw the 1disciple whom Jesus loved following them--the one who also had 2leaned back on His chest at the supper and said, “Lord, who is the one who is betraying You?”

21So Peter, upon seeing him, said to Jesus, “Lord, and what about this man?”

22Jesus said to him, “If I want him to remain 3until I come, what is that to you? You 4follow Me!”