What does it mean to be 'thrown into the lake of fire that burns with sulfur'?
The 'lake of fire burning with sulfur' is the ultimate imagery of divine retribution in Revelation. It represents a place of eternal separation from God and a place of conscious, unending torment. The presence of sulfur points to intense, destructive heat, signifying the totality and severity of God's judgment against sin and rebellion.
Being 'cast alive' into this place means there is no escape, no relief, and no end to the punishment. It is the final consequence for those who actively oppose God, embody evil, and lead others into rebellion against Him. This is not simply an end to existence, but the beginning of an eternal state of suffering as a direct result of rejecting God's authority.