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

2 Peter 2:4

4 For if God did not spare angels when they sinned, but cast them into hell and committed them to pits of darkness, reserved for judgment;

2 Peter 2:9

9 then the Lord knows how to rescue the godly from temptation, and to keep the unrighteous under punishment for the day of judgment,

2 Peter 2:17

17 These are springs without water and mists driven by a storm, for whom the black darkness has been reserved.

2 Peter 3:7

7 But by His word the present heavens and earth are being reserved for fire, kept for the day of judgment and destruction of ungodly men.