Technically Tolkien revised
'the sons of the Gods were young and fair and terrible' -->
'the host of the Gods were arrayed in forms of Valinor'
The meaning of which I'm not exactly sure, but Christopher Tolkien published:
'for the host of the Valar were arrayed in forms young and fair and terrible'
But some have wondered if perhaps the Valar themselves did not attend
Despite the resulting devastation to Beleriand.