This is a snippet from a pretty long article I wrote some number of years ago:
The Three Degrees of Torment
The torment of Hades, the weeping in the Outer Darkness, and the eternal Lake of Fire seem to refer to similar things, but separated in time:
1. Hades -- Refers to the time between death and resurrection.
2. The Outer Darkness -- Refers to the time between the first resurrection and the final judgment after the second resurrection. Thus, this imprisonment will be during the Millennial Kingdom.
3. The Lake of Fire -- The ultimate judgment of the unsaved.
Not only is there a difference in time, but there is also a difference in the degree of punishment.
Just throwing it out there for comments/potshots