2 Peter 2:4

For if God did not spare sinning angels, but cast them in chains, into deep, dark dungeons to await judgment;

Jude 1:6

And angels, who did not remain within [the bounds of] their proper authority, but left their own realm, God has kept in perpetual bondage, under [thick] darkness, awaiting judgment on the Great Day [when they will be punished].

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 sinning angels, but cast them in chains, into deep, dark dungeons to await judgment;
Jude 1:6
And angels, who did not remain within [the bounds of] their proper authority, but left their own realm, God has kept in perpetual bondage, under [thick] darkness, awaiting judgment on the Great Day [when they will be punished].