'Edom' or 'Idumea,' as in Isaiah 34:5, signifies people who are in evil and falsities derived there.

(Odkazy: The Inner Meaning of the Prophets and Psalms 34)

In Revelation 6:8, this signifies evil and falsity as well as eternal damnation, for people who enter hell remain there to eternity. (Apocalypse Explained 383)