Atharva Veda 7.5: A glorification of sacrifice

The Gods adored the Sacrifice with worship: these were the statutes of primeval ages.
Those mighty ones attained the cope of heaven, there where the Sādhyas, Gods of old, are dwelling.

Sacrifice was, was manifest among us: it sprang to life and then in time grew stronger.
Then it became thedeities' lord and ruler: may it bestow on us abundant riches.

Where the Gods worshipped Gods with their oblation, worship-ped immortals with immortal spirit, There in the loftiest heaven may we be happy, and look upon that light when Sūrya rises.

With their oblation, Purusha, the Gods performed a sacrifice.
A sacrifice more potent still they paid with the invoking hymn.

With dog the Gods, perplexed, have paid oblation, and with cow's limbs in sundry sacrifices.
Invoke for us, in many a place declare him who with his mind.
hath noticed this our worship.