2 Peter 2:4; 2 Peter 2:20

2 Peter 2:4

4 For if God did not spare angels when they sinned, but sent them to hell, putting them in chains of darkness to be held for judgment;

2 Peter 2:20

20 If they have escaped the corruption of the world by knowing our Lord and Savior Jesus Christ and are again entangled in it and are overcome, they are worse off at the end than they were at the beginning.