Pseudo-Augustine
Catena Aurea · Lukasevangelium 22
Then took they him, and led him, and brought him into the high priest’s house. And Peter followed affar off. And when they had kindled a fire in the midst of the hall, and were set down together, Peter sat down among them. But a certain maid beheld him as he sat by the fire, and earnestly looked upon him, and said, This man was also with him. And he denied him, saying, Woman, I know him not. And after a little while another saw him, and said, Thou art also of them. And Peter said, Man, I am not. And about, the space of one hour after another confidently affirmed, saying, Of a truth this fellow also was with him: for he is a Galilæan. And Peter said, Man, I know not what thou sayest. And immediately, while he yet spake, the cock crew. And the Lord turned, and looked upon Peter. And Peter remembered the word of the Lord, how he had said unto him, Before the cock crow, thou shalt deny me thrice. And Peter went out, and wept bitterly.
(App. Serm. 79.) For to Peter were delivered the keys of the kingdom of heaven, to him were entrusted an innumerable multitude of people, who were wrapped up in sin. But Peter was somewhat too vehement, as the cutting off the car of the High Priest’s servant betokens. If he then who was so stern and so severe had obtained the gift of not sinning, what pardon would he have given to the people committed to him? Therefore Divine Providence suffers him first to be holden of sin, that by the consciousness of his own fall he might soften his too harsh judgment towards sinners. When he wished to warm himself at the fire, a maid came to him, of whom it follows, But a certain maid beheld him, &c.