John Chrysostom, on 2Pet 2:22

“For, that of the true proverb has happened to them: The dog is returned to his vomit: and, The sow that was washed, to her wallowing in the mire.”

“Repentance consists in no longer doing the same things, for he who reverts to the same sins is like a dog returning to his vomit.”

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