11 As a dog returns to its vomit, so a fool repeats his folly.
Proverbs 26:11 Cross References - MSB
Exodus 8:15
15 When Pharaoh saw that there was relief, however, he hardened his heart and would not listen to Moses and Aaron, just as the LORD had said.
Matthew 12:45
45 Then it goes and brings with it seven other spirits more wicked than itself, and they go in and dwell there; and the final plight of that man is worse than the first. So will it be with this wicked generation.”
2 Peter 2:22
22 Of them the proverbs are true: “A dog returns to its vomit,” and, “A sow that is washed goes back to her wallowing in the mud.”