John 21:20-23 - Peter And The Other Disciple Jesus Loved
20 Then Peter, turning about, saw the disciple whom Jesus loved following, who also leaned on his breast at supper, and said, Lord, which is he that betrays thee? 21 Peter seeing him said to Jesus, Lord, and what shall this man do?
22 Jesus said unto him, If I will that he tarry until I come, what is that to thee? follow thou me.
23 Then this saying went abroad among the brethren that that disciple should not die; yet Jesus did not say unto him, He shall not die, but, If I will that he tarry until I come, what is that to thee?