Śrīmad-Bhāgavatam · Text 10.14.38
Who is speaking and story frame
जानन्त एव जानन्तु किं बहूक्त्या न मे प्रभो ।
मनसो वपुषो वाचो वैभवं तव गोचर: ॥ ३८ ॥
jānanta eva jānantu
kiṁ bahūktyā na me prabho
manaso vapuṣo vāco
vaibhavaṁ tava go-caraḥ
There are people who say, “I know everything about Kṛṣṇa.” Let them think that way. As far as I am concerned, I do not wish to speak very much about this matter. O my Lord, let me say this much: As far as Your opulences are concerned, they are all beyond the reach of my mind, body and words.
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.