And the celestials, Indra and the rest, on being vanquished by the Daityas,—with the god of Fire at their head,—sought the protection of the exceedingly exalted Great-father. And, having been addressed duly by the deities, Brahmā, then spoke unto the celestials.

In plain words: The demons defeated Indra and the other gods. Led by Agni, the fire god, the gods went to Brahma, the creator and grandfather of all, for protection. Brahma answered them.