Augustine of Hippo, on 2Cor 11:14

“And no wonder: for Satan himself transformeth himself into an angel of light.”

“For so great is the influence of probity and chastity, that all men, or almost all men, are moved by the praise of these virtues; nor is any man so depraved by vice, but he hath some feeling of honor left in him. So that, unless the devil sometimes transformed himself, as Scripture says, into an angel of light, he could not compass his deceitful purpose. Accordingly, in public, a bold impurity fills the ear of the people with noisy clamor; in private, a feigned chastity speaks in scarce audible whispers to a few: an open stage is provided for shameful things, but on the praiseworthy the curtain falls: grace hides, disgrace flaunts: a wicked deed draws an overflowing house, a virtuous speech finds scarce a hearer, as though purity were to be blushed at, impurity boasted of. Where else can such confusion reign, but in devils' temples? Where, but in the haunts of deceit?”

Imported from an open dataset — not yet checked against the printed edition.