'Proverb' in the Bible

Peter asked Him, “Explain this parable [about what defiles a person] to us.”

And he said unto them, Ye will surely say unto me this proverb, Physician, heal thyself: whatsoever we have heard done in Capernaum, do also here in thy country.

He also told them a parable: “No one tears a piece of cloth from a new garment and puts it on an old one; otherwise he will both tear the new, and the piece from the new will not match the old.

He also told them a parable: “Can a blind man guide [another] blind man? Will they not both fall into a hole in the ground?

His disciples said unto him, Lo, now speakest thou plainly, and speakest no proverb.

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.