Eru Ilúvatar (Earth-4552)

Eru is the supreme deity of Arda. He was the single creator, above the Valar, but has delegated most direct action within Eä to the Ainur, including the shaping of the Arda itself.

History
Eru is transcendent, and completely outside of and beyond the world. He first created a group of angelic beings, called in Elvish the "Ainur," and these holy spirits were co-actors in the creation of Arda through a holy music and chanting called the "Music of the Ainur."He is known also as the all powerful". Eru alone can create independent life or reality by giving it the Flame.

Elves and Men were created by Eru directly, without delegation to the Ainur, and they are therefore called "Children of Ilúvatar" (Eruhini). The Dwarves were created by Aulë with the belated of Ilúvatar, though they would be second to the Children of Ilúvatar. Ents were also created by Eru under the request of Yavanna who reasoned that Dwarves would want to fell trees. Melkor instilled some semblance of free will into his mockeries of Eru Ilúvatar's creations (Orcs).

The first things that Ilúvatar created were the Ainur (from his thoughts). He then bade the Ainur to sing to him; this was called the Ainulindalë, or the music of the Ainur. Melkor created a discord to the music, and Iluvatar added three themes to the Ainulindale, which talked about the fate of Arda.

The next thing he made was Eä, the "World and All That Is", and Eä was in the Void (Melkor was drawn to the Void, and so at the beginning of Arda, he lay in the Void, or the Outside as it was sometimes called). He then gave the Ainur the option to go into Eä and fashion it as they will. The most powerful Ainur who chose to do so were called the Valar, and they controlled the shaping of the Arda. They could not make life, however, as Aulë proves, who was able to give only shape to the Dwarves, while consciousness was given to them by Eru. The Valar were accompanied by the Maiar, the lesser Ainur. The elves and men, however, came directly from Ilúvatar's thoughts, and are referred to in The Silmarillion as The First Children of Ilúvatar and the Second Children of Ilúvatar, respectively, while the Dwarves would be the Adopted Children.

As time passed, however, Ilúvatar began to lose trust in his creations as the power he now held ultimately corrupted him. This led him to madness as he created his ideal peace by trapping his victims in the Danrad and converting them into White Zetsu, which changed his image from that of a benevolent god into that of a destroyer. In a fit of envy that his own sons had inherited his powers, Eru incarnated to turn against Arda in the form of the monstrous Ten-Tails. Their intense battle ended with his sons separating and absorbing their creator's powerful energy while trapping his body in the moon.

However, just before his creations could completely seal him, Eru manifested his will in the form of Black Zetsu. With the plan of reviving its creator or "father", Black Zetsu manipulated the Men: the Sage's son, Indra, and his descendants: the Uncer family, along with the Elves, lineage of Celeborn descendants, all in an attempt to get one of them to awaken The Source. Sauron would eventually succeed in doing so, and Black Zetsu began secretly manipulating world events to have Eru Ilúvatar revived.