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.

Revelation 16:10

And the fifth poured forth his vial upon the throne of the beast; and his kingdom was darkened, and they gnawed their tongues for

Treasury of Scripture Knowledge

Summary

Shall not the day of the LORD be darkness, and not light? even very dark, and no brightness in it?

Bible References

Darkness

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.
Revelation 16:10
And the fifth poured forth his vial upon the throne of the beast; and his kingdom was darkened, and they gnawed their tongues for