2 Peter 2:21-22

Living Bible

²¹ It would be better if he had never known about Christ at all than to learn of him and then afterwards turn his back on the holy commandments that were given to him. ²² There is an old saying that “A dog comes back to what he has vomited, and a pig is washed only to come back and wallow in the mud again.” That is the way it is with those who turn again to their sin.