A heathen is not only a person who worships a false god, but one who also violates the laws of the True and Living Lord Almighty.
It is the violation of those laws that corrupts himself, society and even nature. Such must be destroyed in order to restore creation to health.
In the DayOfWrath those who have rejected the LordJesusChrist, choosing rather a heathen existence, will be destroyed along with the works of their hands such that the earth is cleansed of even their memory.