Śatapatha Brāhmaṇa ("of a hundred paths") 6.5.4.7

6.5.4.7

gnāstvā devīḥ | viśvadevyāvatīḥ pṛthivyāḥ sadhasthe aṅgirasvatpacantūkha iti gnā haitāmagre devīrviśvadevyāvatīḥ pṛthivyāḥ sadhasthe 'ṅgirasvatpecustābhiravaināmetatpacati tāni ha tāni candāṃsyeva candāṃsi vai gnāścandobhirhi svargaṃ lokaṃ gacanti candobhirevaināmetatpacati

'May the divine ladies, dear to all the gods, bake thee, Aṅgiras-like, O fire-pan, in the lap of the earth!' for of old the divine ladies, dear to all the gods, did, like Aṅgiras, bake it in the lap of the earth, and with their help he now bakes it. But, surely, these are the metres,--the ladies (gnâ) are indeed the metres (scripture texts), for by means of these men go (gam) to the celestial world: by means of the metres he thus bakes it.