User blog comment:TheKingofWhitheredHeath/What is Tom Bombadil?/@comment-26921108-20150823215107

I personally believe that Tom Bombadil being "The Oldest living thing" was one of Eru's first creatons. Not Eru himself, but certainly very powerful. Plus, not being an miar(spelled correctly, I think not), or one of the free peoples one would think that he would be resistant to the rings control. Plus being one of the first creations would mean that he was before Melkor created discord among the other Ainur. Therefor being in essence pure, and insusceptible to the ring.