Śatapatha Brāhmaṇa ("of a hundred paths") 1.5.1.5

1.5.1.5

sa āha | agnirdevo daivyo hotetyagnirhi devānāṃ hotā tasmādāhāgnirdevo daivyo hoteti tadagnaye caiva devebhyaśca nihnute yadahāgre 'gnimāha tadagnaye nihnute 'tha yo devānāṃhotā tamagra āha tadu devebhyo nihnute

He says, 'Agni, the god, the divine Hotri--,' for Agni is indeed the Hotri of the gods, therefore he says 'Agni, the god, the divine Hotri:' thereby he propitiates both Agni and the gods; for by his first mentioning Agni he propitiates Agni; and by his first mentioning him who is the Hotri of the gods, he propitiates the gods.