Śrīmad-Bhāgavatam · Text 7.1.12
Who is speaking and story frame
य एष राजन्नपि काल ईशिता
सत्त्वं सुरानीकमिवैधयत्यत: ।
तत्प्रत्यनीकानसुरान् सुरप्रियो
रजस्तमस्कान् प्रमिणोत्युरुश्रवा: ॥ १२ ॥
ya eṣa rājann api kāla īśitā
sattvaṁ surānīkam ivaidhayaty ataḥ
tat-pratyanīkān asurān sura-priyo
rajas-tamaskān pramiṇoty uruśravāḥ
O King, this time factor enhances the sattva-guṇa. Thus although the Supreme Lord is the controller, He favors the demigods, who are mostly situated in sattva-guṇa. Then the demons, who are influenced by tamo-guṇa, are annihilated. The Supreme Lord induces the time factor to act in different ways, but He is never partial. Rather, His activities are glorious, and therefore He is called Uruśravā.
Read Śrīla Prabhupāda's purport on Vedabase.io