Marcos 14:29-30

Peter refused to allow the possibility that he would forsake Jesus even though the other disciples might (cf. John 21:15). Jesus informed Peter that his defection would really be worse than that of the other disciples. He introduced His warning with the customary solemn affirmation and explained that the denial was not only certain but imminent. Furthermore Peter would utter it three times in spite of the rooster’s double warning. Mark alone referred to the second crowing, probably because of Peter’s recollection of the event. The word Jesus used for "deny" or "disown" (Gr. aparnese) is a strong one meaning "deny utterly."