Parallel
2 Peter 2:22
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.
Of them the proverbs are true: “A dog returns to its vomit (note: Proverbs 26:11),” and, “A sow that is washed goes back to her wallowing in the mud.”