And Peter remembered the words of Jesus, who said unto him,
Before the cock crows, you shall deny me three times.
And he went out, and wept bitterly.
All Commentaries on Matthew 26:75 Go To Matthew 26
John Chrysostom
AD 407
But Mark says, that when he had once denied, then first the cock crew, but when thrice, then for the second time; for he declares more particularly the weakness of the disciple, and that he was utterly dead with fear; having learned these things of his master 1 Peter 5:13 himself, for he was a follower of Peter. In which respect one would most marvel at him, that so far from hiding his teacher's faults, he declared it more distinctly than the rest, on this very account, that he was his disciple.
How then is what is said true, when Matthew affirms that Christ said, Verily I say unto you, that before the cock crow you shall deny me thrice; Matthew 26:34 and Mark declares after the third denial, that The cock crew the second time? Mark 14:72 Nay, most certainly is it both true and in harmony. For because at each crowing the cock is wont to crow both a third and a fourth time, Mark, to show that not even the sound checked him, and brought him to recollection says this. So that both things are true. For before the cock had finished the one crowing, he had denied a third time. And not even when reminded of his sin by Christ did he dare to weep openly, lest he should be betrayed by his tears, but he went out, and wept bitterly.