The answer is: They were cast in the lake of fire

Rev 20 vs 15

The Book of Revelation is a vivid portrayal of end times, brimming with symbolism and imagery. When the text mentions those not found in the Book of Life, we encounter a profound metaphor about ultimate accountability. The "lake of fire" isn't just a fiery punishment; it represents exclusion from divine grace and community, encapsulating a separation from the nurturing presence of a just universe. It serves as a stark reminder that choices matter, possibly echoing ideas found in other parts of scripture where righteous living is applauded and the consequences of misdeeds are examined.

Interestingly, the concept of a "book" recording good deeds dates back even beyond Revelation; in the Hebrew Bible, Psalms and Daniel also refer to books that signify remembrance or judgment. There’s even been cultural speculation about literary references or scrolls, mirroring the historical practices of maintaining records. The term "Book of Life" mobilizes thoughts toward relational integrity and beacons of hope through forgiveness and transformation.

As we consider the gravity of neglect, the imagery of the lake may provoke us to explore our contributions to humanity. Rather than finite morals tied solely to retribution, think of how such symbolism urges us toward compassion and understanding. Revelation calls its readers not only to awe but also responsible living in harmony with one another, suggesting a unifying purpose amidst metaphysical awe!