2 Peter 2:4; 2 Peter 2:9; 2 Peter 2:17; 2 Peter 3:7

4 For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;

9 The Lord knoweth how to deliver the godly out of temptations, and to reserve the unjust unto the day of judgment to be punished:

17 These are wells without water, clouds that are carried with a tempest; to whom the mist of darkness is reserved for ever.

7 But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.