This is the final chapter in this amazing story, and I would say if you look at the story close enough, you’ll see it follows the end of days.
The War to end all Wars. The forces of evil gather to attack Minas Tirith, the City of Kings, the capital city of Gondor. It was where the army of evil came and attacked. The ending battle in Revelation talks about how there will be a great battle to end battles, where God and his enemies fight to the end. This is a great picture of what that will be like.
The Lake of Fire analogy
It isn’t hard to see that Mount Doom represents The Lake of Fire, as depicted in the end of days. Here are some good pictures to explain that further…
Sin is cast away forever
Frodo releases the ring into the Mount Doom crater, or so we think…he needs a little bit of help.
Gollum represent someone who is beyond help and chose not to be redeemed in the end.
The undead army – symbolizing Ezekiel 38, the passage where God takes the dry bones and brings them back. Aragorn brings redemption to those who chose wickedness after they swore allegience to the true king, him.
The Return of the King and the age of peace
(Christ and his Millennial Reign)
Aragorn finally sits as the King of Gondor, bringing in an age of peace to Middle Earth, and all is set right. Jesus will return to earth and reign for 1000 years, as the Bible foretells.
Eternity, the Grey Havens
This symbolizes not only the time of peace but the ending of all things, what happens at the end is that people are given a chance to live without death, Eternal life, the way that only christ can give.
Tolkien is a master of analogy and pictures, and this final chapter is a great image of it.
Bagels and Lox at the King's Table 