One chapter and seventeen verses – still leftovers to figure out. How did Peter, Paul and John come up with this stuff?
Here in chapter three (Second Peter), he seems to have mixed a pot of stew or soup that needs to be eaten very carefully. Take time to dig out each chunk – false teachers (actually teachers of falsehoods), fire coming down, right living, remembering Jesus, creation and the end.
If what he wanted from his readers was attention, [more]he's got it! The word he uses about false teachers is that they are scoffers who follow their own evil desires. That means that they would be people who would mock or ridicule everything the believers had learned. Not only that, they would probably do it in such a way that they would make "believers" feel ridiculous for what they believed – even doubt that it was what they were supposed to believe.
Those teachers would come to plant seeds of doubt, convincing Christ's followers to question what they were doing and how they were supposed to live. Trying to get us to question if "that's really what it means", or "did He really say that?"
Peter's challenge to the early church is "live holy and godly lives…" His reminder is that those who scoff (ridicule or mock) God's Word and Jesus do it not to build us up, but to pull us away from the one we claim to be following. "Grow in the grace and knowledge of our Lord and Savior…" (2 Peter 3:18)