John 21:7; John 21:20; John 21:24
That disciple whom Jesus loved said to Peter, "It is the Lord!" When Simon Peter heard that it was the Lord, he put on some clothes, for he was naked, and jumped into the sea.
Peter turned and saw the disciple whom Jesus loved following them; he was the one who had reclined next to Jesus at the supper and had said, "Lord, who is it that is going to betray you?"
This is the disciple who is testifying to these things and has written them, and we know that his testimony is true.