User blog comment:Legolas halfelf/Silmarillion questions/@comment-91.7.74.232-20150603141505

Like another commentator said, Manwé is the oldest of the Ainur besides Melkor and because he does not understand evil, he fits the office of the Elder King of Arda best. Also it is said about him that he may not be as powerful als Melkor, but that he has the talent of natural authority. That of course makes him of the Grace of Eru Elder King of Arda and primus inter pares of the Aratar (Council of the Valar).