Mark 14:72
At that moment, for the second time, a cock crowed; and Peter remembered the words that Jesus had said to him-- 'Before a cock has crowed twice, you will disown me three times'; and, as he thought of it, he began to weep.
Mark 14:30
"I tell you," answered Jesus, "that you yourself today--yes, this very night--before the cock crows twice, will disown me three times."
Mark 14:68
But Peter denied it. "I do not know or understand what you mean," he replied. Then he went out into the porch;
Matthew 26:34
"I tell you," replied Jesus, "that this very night, before the cock crows, you will disown me three times!"
Matthew 26:74-75
Then Peter began to swear, with most solemn imprecations: "I do not know the man." At that moment a cock crowed;
Luke 15:17-19
But, when he came to himself, he said 'How many of my father's hired servants have more bread than they can eat, while here am I starving to death!
Luke 22:60
But Peter said: "I do not know what you are speaking about." Instantly, while he was still speaking, a cock crowed.
Luke 22:62
And he went outside and wept bitterly.
2 Corinthians 7:10
For, when sorrow is in accordance with God's will, it results in a repentance leading to Salvation, and which will never be regretted. The sure result of the sorrow that the world knows is Death.