

Not really answering your question but your post got me thinking. Is there a person in the bible who is immortal like the Elves? And God and Jesus do not count. So I found these three on the internet:
Enoch: In the genealogies of Genesis, everyone’s story ends with “…and he died.” Enoch is the sole exception. Genesis 5:24 states: “Enoch walked faithfully with God; then he was no more, because God took him away.” The New Testament confirms this in Hebrews 11:5, stating he was taken “so that he did not experience death.”
Elijah: The fiery Old Testament prophet did not die a natural death. Instead, while walking with his successor Elisha, a chariot of fire and horses of fire separated them, and Elijah “went up to heaven in a whirlwind” (2 Kings 2:11).
Melchizedek: He is a mysterious king and priest who briefly meets Abraham in Genesis 14. In the New Testament, Hebrews 7:3 describes him in highly unusual terms: “Without father or mother, without genealogy, without beginning of days or end of life, resembling the Son of God, he remains a priest forever.” A bit like Tom Bombadil.
Or should we see Elves like Angles on Earth?






Totally forgot that Enoch was taken by God. And I agree with you that the Ainur are more like angels.