Mark 14:69-72

⁶⁹ And the female servant, on seeing him, began again to say to the bystanders, “This man is one of them.” ⁷⁰ But again he denied it. Then after a little while the bystanders again said to Peter, “Certainly you are one of them, for you are a Galilean, and you talk like one.” ⁷¹ But he began to curse, and he swore an oath, “I do not know this man you are talking about.” ⁷² At that moment the cock crowed for the second time. Then Peter remembered that Jesus had said to him, “Before the cock crows twice, you will deny me three times.” And he broke down and wept. (New Revised Standard Version)