"Do You Hate Women?"

[Zigûr]

Originally Posted by Marwhini

Satan isn't Sauron.

Satan is Morgoth.

Tolkien even calls Morgoth "Satan" and "The Devil" in several of his only known film appearances.

To be fair, in Letter 175 Professor Tolkien does refer to Sauron, at least indirectly, as "the Devil":

I think the book quite unsuitable for 'dramatization', and have not enjoyed the broadcasts – though they have improved. I thought Tom Bombadil dreadful — but worse still was the announcer's preliminary remarks that Goldberry was his daughter (!), and that Willowman was an ally of Mordor (!!). Cannot people imagine things hostile to men and hobbits who prey on them without being in league with the Devil!

Sauron was, after all, "a reincarnation of Evil" (Letter 131). I think there is potential in considering "Melkor" and "Morgoth" to, in effect, be two different people (just in a sense; don't take me too literally).