John 13:36-38 Revised Standard Version (RSV)
Jesus Foretells Peter’s Denial
36 Simon Peter said to him, “Lord, where are you going?” Jesus answered, “Where I am going you cannot follow me now; but you shall follow afterward.” 37 Peter said to him, “Lord, why cannot I follow you now? I will lay down my life for you.” 38 Jesus answered, “Will you lay down your life for me? Truly, truly, I say to you, the cock will not crow, till you have denied me three times.