Śrīmad-Bhāgavatam · Text 2.4.8
Who is speaking and story frame
नूनं भगवतो ब्रह्मन् हरेरद्भुतकर्मण: ।
दुर्विभाव्यमिवाभाति कविभिश्चापि चेष्टितम् ॥ ८ ॥
nūnaṁ bhagavato brahman
harer adbhuta-karmaṇaḥ
durvibhāvyam ivābhāti
kavibhiś cāpi ceṣṭitam
O learned brāhmaṇa, the transcendental activities of the Lord are all wonderful, and they appear inconceivable because even great endeavors by many learned scholars have still proved insufficient for understanding them.
Read Śrīla Prabhupāda's purport on Vedabase.io