ते वा एतेऽथर्वाङ्गिरस एतदितिहासपूराणमभ्यतपं स्तस्याभितप्तस्य यशस्तेज इन्द्रियां वीर्यमन्नाद्यंरसोऽजायत ॥ ३.४.२ ॥
In plain words
These very hymns of the Atharvans and Aṅgirases brooded upon this story and ancient lore; and from it, brooded upon, there was born glory, splendour, power, strength and food to eat, as its savour.