How hurtful it is to speak with the wicked. He denies before infidels that he knows the Man, whom amongst the disciples, he had confessed to be God. But the Scripture is wont to point out a Sacrament of the causes of things, by the state of the time; thus Peter, who denied at midnight, repented at cock crew.
Wherefore it is added: “And the second time the cock crew. And Peter called to mind the word which Jesus said unto him, Before the cock crew twice, thou shalt deny me thrice.”
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).