Yāska's Nirukta 13.1: Pariśiṣṭa

13.1

atha imā atistuti1p ity ācakṣate/
api vā sampratyaya eva syāt māhābhāgyād devatāyāh/
sas agnim eva pratham āha/
``tvam agne dyubhis tvam āśuśukṣanih''.iti yathā etasmin sūkte/''.na hi tvadāre nimisaś caneśe''.iti varuṇasya/
atha eṣā indrasya/

Now, these they call exaggerated praises.
Or rather, there may be actual comprehension [of reality], owing to the pre-eminent majesty of the deity.
He mentions Agni first:
"You, O Agni, with days; you, gleaming brightly...", as in this hymn. "For far from you not even a blinking [of the eye] is controlled..." is of Varuṇa.
Now this [verse] is of Indra: