The scriptural passage declaring that the Lotus Sūtra is the supreme sūtra of all the Buddhist scriptures which had been preached, are being preached, and will be preached, can hardly be refuted even by the Buddha. Much less can any inferior commentator, teacher, or king refute it with his authority? The King of the Brahma Heaven, Indra, sun and moon, and the Four Heavenly Kings all hear this statement in the Lotus Sūtra and wrote it down on their palaces.

Zui-jii Gosho, The Sūtra Preached in Accordance to [the Buddha’s] Own Mind, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 160