2 Peter 2:4

For God, indeed, did not spare the angels who sinned, but with chains of darkness confining them in Tartarus, delivered them over to be kept for judgment;

2 Peter 2:17

These are wells without water, clouds driven by a tempest; for whom the blackness of darkness is reserved forever:

Jude 1:13

raging waves of the sea, foaming out their own shame; wandering stars, for whom the blackness of darkness for ever is reserved.

Treasury of Scripture Knowledge

Summary

But the children of the kingdom shall be cast out into outer darkness: there shall be weeping and gnashing of teeth.

Bible References

Be cast

2 Peter 2:4
For God, indeed, did not spare the angels who sinned, but with chains of darkness confining them in Tartarus, delivered them over to be kept for judgment;
Jude 1:13
raging waves of the sea, foaming out their own shame; wandering stars, for whom the blackness of darkness for ever is reserved.