John the Apostle
John 21:18KJV·traditional attribution

Verily, verily, I say unto thee, When thou wast young, thou girdedst thyself, and walkedst whither thou wouldest: but when thou shalt be old, thou shalt stretch forth thy hands, and another shall gird thee, and carry thee whither thou wouldest not.

John Calvin Reformed

18. Verily, verily, I tell thee. After having exhorted Peter to feed his sheep, Christ likewise arms him to maintain the warfare which was approaching. Thus he demands from him not only faithfulness and diligence, but invincible courage in the midst of dangers, and firmness in bearing the cross. In short, he bids him be prepared for enduring death whenever it shall be necessary.

Matthew Henry Presbyterian

We have here Christ's discourse with Peter after dinner, so much of it as relates to himself, in which, I. He examines his love to him, and gives him a charge concerning his flock, Joh 21:15-17. Observe, 1. When Christ entered into this discourse with Peter.

Commenting on John 21:15-19

John Gill Reformed Baptist

Verily, verily, I say unto thee,.... A way of speaking often used by Christ, when about to deliver anything of considerable moment, partly to raise the attention, and partly for the more strong asseveration of what is spoken; and may have reference both to what went before, confirming Peter's declaration of his love, which would be demonstrated by dying for him, and the testimony of...