John 21:19-21

19 Now he said this, signifying by what kind of death he would glorify God. When he had said this, he said to him, “Follow me.”

20 Then Peter, turning around, saw a disciple following. This was the disciple whom Jesus sincerely loved, the one who had also leaned on Jesus' breast at the supper and asked, "Lord, who is going to betray You?"  21 Peter seeing him, said to Jesus, "Lord, what about this man?"