John 21:20-23 - Peter And The Other Disciple Jesus Loved
20 And Peter turning about seeth the disciple whom Jesus loved, (and who leaned on his breast at supper, and said, Lord, who is he that will betray Thee?) following them; 21 and upon seeing him, Peter saith to Jesus, Lord, what shall this man do?
22 Jesus saith unto him, If I will that he stay till I come, what is it to thee? Follow thou me.
23 This rumor therefore was spread among the brethren, that that disciple should not die: though Jesus did not say that he should not die, but--- if I will that he stay till I come, what is that to thee?