Bhagavad Gita, Chapter 7, Verse 26

वेदाहं समतीतानि वर्तमानानि चार्जुन । भविष्याणि च भूतानि मां तु वेद न कश्चन

vedāhaṃ samatītāni vartamānāni cārjuna | bhaviṣyāṇi ca bhūtāni māṃ tu veda na kaścana

Translation

I know, O Arjuna, the past and the present and the future beings, but Me nobody knows.

— Alladi Mahadeva Sastri

Word meanings

veda
know(s)
aham
I
samatītāni
past
vartamānāni
present
ca
and
arjuna
O Arjuna
bhaviṣyāṇi
future
ca
and
bhūtāni
beings
mām
me
tu
indeed
veda
knows
na
not
kaścana
any one

Śaṅkarācārya's commentary

Nobody knows Me, except that one man who worships Me and seeks refuge with Me. Just for want of knowledge of My real nature, nobody worships Me.