2 Peter 2:4

For if God did not spare angels when they sinned, but cast them down to Tartarus, and committed them to chains of darkness, and reserved them for judgment;

Jude 1:6

while the angels who did not keep their first domain but left their proper abode, are held by him in blank darkness, in everlasting chains, in preparation for the judgment of the Great Day.

Treasury of Scripture Knowledge

Summary

Behold, he put no trust in his servants; and his angels he charged with folly:

And his angels he charged with folly

Bible References

And his angels he charged with folly

2 Peter 2:4
For if God did not spare angels when they sinned, but cast them down to Tartarus, and committed them to chains of darkness, and reserved them for judgment;
Jude 1:6
while the angels who did not keep their first domain but left their proper abode, are held by him in blank darkness, in everlasting chains, in preparation for the judgment of the Great Day.