John 13:36-38

Simon Peter saith unto him, Lord, whither goest thou? Jesus answered, Whither I go, thou canst not follow me now; but thou shalt follow afterwards. Peter saith unto him, Lord, why cannot I follow thee even now? I will lay down my life for thee. Jesus answereth, Wilt thou lay down thy life for me? Verily, verily, I say unto thee, The cock shall not crow, till thou hast denied me thrice.