2 Peter 2:3-4

And in their greed they will exploit you with false arguments and twisted doctrine. Their sentence [of condemnation which God has decreed] from a time long ago is not idle [but is still in force], and their destruction and deepening misery is not asleep [but is on its way]. For if God did not [even] spare angels that sinned, but threw them into hell and sent them to pits of gloom to be kept [there] for judgment