But false prophets also arose among the people, just as there will be false teachers among you, who will secretly bring in destructive opinions. They will even deny the Master who bought them—bringing swift destruction on themselves.
Even so, many will follow their licentious ways, and because of these teachers the way of truth will be maligned.
References for 2 Peter 2:2
And in their greed they will exploit you with deceptive words. Their condemnation, pronounced against them long ago, has not been idle, and their destruction is not asleep.
For if God did not spare the angels when they sinned, but cast them into hell and committed them to chains of deepest darkness to be kept until the judgment;
References for 2 Peter 2:4
and if he did not spare the ancient world, even though he saved Noah, a herald of righteousness, with seven others, when he brought a flood on a world of the ungodly;
and if by turning the cities of Sodom and Gomorrah to ashes he condemned them to extinction and made them an example of what is coming to the ungodly;
References for 2 Peter 2:6