John the Apostle
John 13:38BSB·traditional attribution

“Will you lay down your life for Me?” Jesus replied. “Truly, truly, I tell you, before the rooster crows, you will deny Me three times.

John Calvin Reformed @genevareformer

38. Wilt thou lay down thy life for me? Christ did not choose to debate with Peter, but wished that he should grow wise by his own experience, like fools, who never grow wise till they have received a stroke.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we have, I. Peter's curiosity, and the check given to that. 1. Peter's question was bold and blunt (Joh 13:36): Lord, whither goest thou? referring to what Christ had said (Joh 13:33), Whither I go, you cannot come.

Commenting on John 13:36-38

John Gill Reformed Baptist @doctorgill

Jesus answered him, wilt thou lay down thy life for my sake,.... Christ speaks these words as questioning, not Peter's sincerity, but his strength; or as deriding him, or rather pitying him; as if he should say, thou poor vain self-sufficient man, thou dost not know what thou talkest of: verily, verily, I say unto thee, the cock shall not crow, till thou hast denied...