Matthew 26:73KJV

71And again he denied with an oath, I do not know the man.

72And after a while came unto they that stood by, and said to Peter, Surely thou also art of them; for thy speech bewrayeth thee.

73Then began he to curse and to swear, , I know not the man. And immediately the cock crew.

74And Peter remembered the word of Jesus, which said unto him, Before the cock crow, thou shalt deny me thrice. And he went out, and wept bitterly.