§ Of the Beginning of Days The Silmarillion

Manwë has no thought for his own honour, and is not jealous of his power, but rules all to peace. The Vanyar he loved best of all the Elves, and of him they received song and poetry; for poetry is the delight of Manwë, and the song of words is his music. His raiment is blue, and blue is the fire of his eyes, and his sceptre is of sapphire, which the Noldor wrought for him; and he was appointed to be the vicegerent of Ilúvatar, King of the world of Valar and Elves and Men, and the chief defence against the evil of Melkor. With Manwë dwelt Varda the most beautiful, she who in the Sindarin tongue is named Elbereth, Queen of the Valar, maker of the stars; and with than were a great host of spirits in blessedness.