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.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: App. Serm. 79.