John 13:36-38 - Peter's Denials Predicted
36 Simon Peter said to Jesus, "Lord, where are you going?" Jesus answered, "You cannot follow me where I am going now, but you will [be able to] follow later."
37 Peter [then] said to Him, "Lord, why can I not follow you [there] even now? I am willing to die for you."
38 Jesus answered him, "Will you [really] die for me? Truly, truly, I tell you, before the rooster crows, you will deny [knowing] me three times."