All Bible students recognize that the expressions of this chapter and verse are highly figurative. Where it is stated that a "beast and false prophet" are to be cast into the "lake of fire and brimstone," no reasoning mind would say that literal beast, or a literal false prophet were meant; but that these were symbols, and represent false and beastly systems. And if not an actual beast is meant, so also with the "lake of fire and brimstone." This lake would fittingly symbolize absolute destruction, for whatever is cast into fire and brimstone, the two most destructive agencies known to mankind, is immediately destroyed and not preserved in any sense. As stated in the 14th verse, it is the "second death"–annihilation. To our understanding, the "devil" here mentioned is not Satan himself, but is an evil system–a devilish power. These evil systems–false civil and ecclesiastical powers–in the end of the Age are to be "tormented day and night," as long as they last, with financial, social, and religious difficulties and pains. "Forever and ever" is from the Greek aionion which signifies lasting. The "torment" will last until these Satanic systems are consumed.
