More of Celeborn's post. Please note that, although, my name appears as the author of these posts, I, merely, copy and paste the contents of Celeborn's threads in Religion of Middle Earth.
Here's a little more about Dagor Dagorath. It didn't go exactly according to script. Of course Gilthrang immediately let Melkor and Sauron back into Arda. Melkor cuffed Sauron and said "Now why couldn't you be more like this Good Boy?" "Ouch, I'm sorry!" Sauron whined. Just then Turin charged up and stabbed Melkor with his sword. Melkor fell dead, but immediately came back to life. "I suppose you forgot that Ainur never die!" Melkor smirked. Then he tied Turin up on the Moon. Then Earendil dashed up. Melkor threw away his bow and arrow and said "I could throttle you for killing Ancalagon!" He tied Earendil up on the Moon as well. Then Manwe hurried up, out of breath. "Melkor!" cried Manwe. "Why are you so bad? You were always such a good boy, what happened?" Melkor threw his hat on the ground and said "I drank Deadly Poison in the Void, you fool! And then I got the other idiots to do it too! I'm not myself! You know all this!" Manwe grabbed Melkor by the ear and said "Well maybe I can pinch the badness out!" "Eeyow!" howled Melkor. "Gilthrang?" "Uh, you'd better cut that out!" said Gilthrang uncertainly. "Stand back!" shouted Sauron, waving his reconstituted Ring, "Or You Know What!" "Uh-oh!" said Manwe, letting go. Just then, Iluvatar came up, and you know the rest. Cirdan saw the whole thing, he swears up and down it happened just this way. I have no reason to doubt him.
When Melkor was thrown out of Arda, Iluvatar called Melkor to Him. Melkor reluctantly came. "What do You want?" he said sullenly. "Good news, Melkor!" said Iluvatar. "I have found out what Evil is! Would you like to know what it is?" Melkor shrugged irritably. "I am stark raving mad!" he snapped. "Nothing that You tell me will make the slightest bit of difference!" "I will tell you anyway,"said Iluvatar. "When I first awoke from the Timeless Dream, I first came into contact with the Void. When the Void touched Me, it caused a chemical reaction within Me. When I tore the affected part out, it became Evil." "And I drank it all up, I and the others. And now I am poisoned for good," said Melkor. "It was your bad decision," said Iluvatar. "But a germ of good exists within you still." "Too bad!" snorted Melkor. "No, good for you!" said Iluvatar. "At the end of the Universe, the Evil part of you will turn back into Void and cease to exist. The Germ of Good will be the only part of you that survives." "So?" said Melkor. "So the Germ of Good is about enough to make into a Soul. I will make a new Universe for you and the other Unworthy at the end of things. Time will start again, and you will be reincarnated into billions of lives until you redeem yourself. So there's hope for even you!" "Whoop-dee-doo!" said Melkor, twirling his finger. "Can I go now?" "Yes, you may go," said Iluvatar. "Then goodbye!" said Melkor, and he left.
AGOR DAGORATH CONTINUED: "Manwe, you get back to Aman at once!" shouted Iluvatar. "Sure," muttered Manwe. "Wait!" said Iluvatar. He handed Manwe the souls of Turin and Earendil. "Take these with you!" He said. "Yeah, right," said Manwe, hurrying off. Iluvatar turned to glare at the three wicked Ainur. "Well, I suppose you're all very proud of yourselves!" He growled. "Another lecture!" wailed Melkor, sticking his fingers in his ears. Iluvatar spotted the Ring in Sauron's hand. "Eh? What's this?" He said, snatching it away. "Hey!" Sauron cried. "What are you doing with this back again?" said Iluvatar, squinting at the Ring in disbelief. "Yeah, well, it rematerialized again in my hand, didn't it?" mumbled Sauron. "I thought I told you to lay off!" shouted Iluvatar, crushing the Ring to dust between his thumb and forefinger. "Oh no!" whimpered Sauron. "No more rings for you!" said Iluvatar. "Now go back to the Void!" Sauron ran off, crying. "And as for you!" roared the Deity, wheeling towards Gilthrang. "Who, me?" said Gilthrang, looking around desperately. "You mean to tell me you've been lying around in a Vault for upwards of 40,000 years? For what purpose, sir?" "Well, it was part of the Plan!" said Gilthrang defensively. "Ooooh, the Plan!" said Iluvatar mockingly. "Well here's a better plan! Go back to the Void! Now!" "Crikey!" yelped Gilthrang, and scurried off. "Hello again, Melkor!" said Iluvatar sarcastically. "I am very ill!" Melkor snapped. "Oh, spare me, please!" groaned Iluvatar. "Same old excuse for eons! You stupidly poison yourself and you think it somehow exonerates you! Well, I'll have a word with you in the Void, young man! This is the last time you interfere here! Now skedaddle!" "Gladly!" huffed Melkor, and darted off. Then Iluvatar turned and addressed Arda (above).