Eru Ilúvatar is the creator of
Eru is introduced in The Silmarillion as the supreme being of the universe, creator of all existence, including the world, Arda, and its central continent, Middle-earth. In Tolkien's invented Elvish language Quenya, Eru means "The One", or "He that is Alone" and Ilúvatar signifies "Allfather".
14 Tom Bombadil, The Joyful
He is a joyful soul, and this hides an immense well of power. No earthly strife seems to trouble him, and he is immune to the power of the Ring. Such propensity aligns Tom with the Valar or perhaps something greater, and Gandalf would never be able to overpower him.
The Witch-king is the most powerful of the nine ringwraiths, having served Sauron as a Nazgûl for more than four thousand years. The Witch-king has a particular hatred of Gondor, and is responsible for the death of Gondor's final king, Eärnur.
Morgoth Was Originally More Powerful Than Sauron
When he couldn't accomplish that, he began to war against the other Valar and rule over Middle-earth with his fires and evil creations. With this turn to darkness, Melkor became known as Morgoth. While at war, Morgoth lured many beings to his cause.
Eru Ilúvatar, also known as the One, is the single omniscient, omnipotent, and omnibenevolent creator. He has been existing eternally in the Timeless Halls and possesses the Flame Imperishable in his spirit which kindles existence from nothingness.
Given these bits of information, it seems like within his realm, Bombadil would have been able to defeat the Nazgûl or at least banish them. Outside his realm, however, he wouldn't have been quite as effective in a fight against them.
Would Tom Bombadil be able to defeat Sauron? No. Tom is not a lord of armies like Sauron, he has no forces to resist or attack the Dark Lord. All the armies of the Free People could barely withstand a wave of Sauron's power, other greater ones would come.
The Tolkien scholar and philosopher Gene Hargrove argued in Mythlore in 1986 that Tolkien understood who Bombadil is, but purposefully made him enigmatic. Nevertheless, Tolkien left clues that Bombadil is a Vala, a god of Middle-Earth, specifically Aulë, the archangelic demigod who created the dwarves.
He will fight in the Last Battle against the Valar and their allies, but will ultimately be slain by Túrin Turambar, the Man he cursed. By finally defeating Morgoth, Túrin will avenge not only himself, but all members of the race of Men.
In Lindon, Gil-galad was acknowledged as the "High King of the Elves of the West". He was the chief enemy of Sauron in the Dark Years, at the end of which he appointed Elrond as his vice-regent in Eriador. After the Downfall of Númenor, Gil-galad and Elendil formed the Last Alliance of Elves and Men to destroy Sauron.
It is often thought that his mysterious origin may tie back to the Ainur, the angelic creatures who had a hand in creating Middle-earth itself. Using softer, gentler sources such as music and the forest around him, Bombadil could perform great magic to seemingly control the world, reality and nature around him.
As he is an ancient spirit tied to the woodland and the acorns and the leaves, it would make sense that he is only able to exist when he is near them. It also explains why he can't take the ring to Mordor and destroy it himself, because he is encased within his borders, and cannot step outside them.
The consensus among the Wise is that, even weakened and without the Ring, Sauron is more powerful than Tom Bombadil. Power to defy our Enemy is not in him, unless such power is in the earth itself. And yet we see that Sauron can torture and destroy the very hills.
There's no shame in this (despite what some hardcore corners of the fandom say), but it does leave these movie-only Middle-Earth fans vulnerable to misconceptions about Tom Bombadil's power. He is incredibly powerful and is immune to the effects of the One Ring. He is not, however, more powerful than Morgoth.
Within the story, he is depicted as a powerful Elf-lord who could withstand the Nazgûl, wraith-like servants of Sauron, and holds his own against some of them single-handedly. Glorfindel and a version of the story of the Fall of Gondolin appear in The Silmarillion, posthumously published in 1977.
Tom Bombadil failed to appear in The Rings of Power season 1, but is definitely lurking somewhere during Amazon's Middle-earth series.
However, in J.R.R. Tolkien's books, he does not have one representation of Jesus but rather three: Gandalf, Aragorn, and Samwise Gamgee (perhaps representative of the Holy Trinity, the concept of 'God in three persons'). Each of these characters symbolizes a different aspect of Jesus Christ.
Sauron. If you've read J.R.R. Tolkien's The Hobbit and his The Lord of the Rings trilogy, or seen the six movie adaptations directed by Peter Jackson, you have a pretty good idea of Sauron's place in the Third Age.