Śrīmad-Bhāgavatam · Text 10.20.18
Who is speaking and story frame
धनुर्वियति माहेन्द्रं निर्गुणं च गुणिन्यभात् ।
व्यक्ते गुणव्यतिकरेऽगुणवान् पुरुषो यथा ॥ १८ ॥
dhanur viyati māhendraṁ
nirguṇaṁ ca guṇiny abhāt
vyakte guṇa-vyatikare
’guṇavān puruṣo yathā
When the curved bow of Indra [the rainbow] appeared in the sky, which had the quality of thundering sound, it was unlike ordinary bows because it did not rest upon a string. Similarly, when the Supreme Lord appears in this world, which is the interaction of the material qualities, He is unlike ordinary persons because He remains free from all material qualities and independent of all material conditions.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.