How does the author use foreshadowing in The Silmarillion?

The first chapter, Ainulindale, serve as a creation story in which Iluvatar is the omnipotent being that creates the world, Ea. The Ainur or Valar are his servants, comparable to angels in Christianity. As the Ainur sing the theme that Iluvatar teaches them, Melkor's constant inputs do not harmonize with the other Ainur; this foreshadows his separation from the Valar. His continuation of causing chaos in the song demonstrates his persistence and self-will. Iluvatar reveals the world that he plans to the Ainur, foreshadowing the creation of Ea. His plans to create Elves and Men foreshadows the births of Elves and Men. Melkor's ambition foreshadows his attempts to usurp the power and the ruling of Ea. When Iluvatar reveals the Darkness which frightens the Ainur, it foreshadows the evil that will be introduced into the world, which appalls the Valar. The Valar's dedication to forming Ea in Iluvatar's image demonstrates their loyalty to Iluvatar. Melkor's attempt to rule and his subsequent waging of war foreshadows his position as the antagonist of the Valar. The Valar's hard work in preparing Ea for the Elves and Men prove and foreshadow their love for the Children of Iluvatar. Valaquenta reveals the Valar's power, specifically that of Manwe who rules the other Valar. The Valar are individualized in this chapter and their individual powers and dominions are explained. Melkor not being mentioned amongst the Valar demonstrates his separation from the others of his kind. The Maiar are introduced and described in this chapter as well. Melkor is renamed Morgoth, the Dark Enemy of the World, by them Noldor, foreshadowing the hatred the Noldor will bare Melkor. Sauron is also introduced in this chapter. The fact that the Valarankar and Balrogs are drawn to Melkor foreshadows their evil and sets up a dichotomy of Good versus Evil in Ea. The two sides are set up as armies with Manwe leading with Ulmo as his second-in-command on the side of Good, while Melkor leads with Sauron as his second-in-command on the side of Evil.