Bhagavad Gita Chapter 7 Verse 26
भगवद् गीता अध्याय 7 श्लोक 26

वेदाहं समतीतानि वर्तमानानि चार्जुन।
भविष्याणि च भूतानि मां तु वेद न कश्चन।।7.26।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 7.26)
।।7.26।।हे अर्जुन जो प्राणी भूतकालमें हो चुके हैं जो वर्तमानमें हैं और जो भविष्यमें होंगे उन सब प्राणियोंको तो मैं जानता हूँ परन्तु मेरेको कोई (मूढ़ मनुष्य) नहीं जानता।


Rudra Vaishnava Sampradaya - Commentary





Lord Krishna has previously stated that the  ignorant  are  oblivious  about
His supreme nature. Now He reveals that a part of  His  nature  consists  of
omniscience. He confirms that He knows all beings movable and  immovable  in
their present existence, all those that perished  in  their  past  existence
and the future lives of all those that are yet to come into  existence.  His
external energy known as maya is illusory impressions superimposed upon  the
mind which deludes all living entities; but as He is the foundation of  maya
He alone can never be deluded for maya is  subservient  and  dependent  upon
Him.


Brahma Vaishnava Sampradaya - Commentary





Lord Krishna explains that for Him there is  never  any  illusion;  but  the
embodied beings without His grace emanating through the  bonafide  spiritual
master in  authorised  disciplic  succession  will  find  it  impossible  to
extricate themselves from maya or  illusory  impressions  superimposed  upon
the mind. It should be clearly understood that no one can know Lord  Krishna
by their own efforts regardless how great. He  is  only  known  by  His  own
desire.





Now begins the summation.





As much as Lord Krishna is known to Himself none other can know Him.  Brahma
the  demigod  responsible  for  material  creation  and  Shiva  the  demigod
responsible for material destruction, by His grace  know  Him  partially  to
some extent according to their ability and  gradation.  The  Katha  Upanisad
I.II.XXIII is categorical in its declaration that: The Supreme  Lord  cannot
be attained by instruction or by intelligence or even  by  constant  hearing
about. Whom the Supreme Lord Himself chooses, only is  able  to  attain  Him
and none other. Only to the one He chooses doe  He  reveal  His  rupa  form,
guna or qualities and lila His phenomenal pastimes.


Shri Vaishnava Sampradaya - Commentary




Lord Krishna reveals that He knows the destiny of all living beings and
this includes their past existence, their present existence and there
future existence. This confirms His omniscient and magnanimous nature that
all movable and immovable sentient beings throughout creation are
continuously objects of His loving concern in the past, present and future;
yet who discerns Him as Vasudeva the cause of all causes, the Supreme Lord
incarnate, always ready to give swift refuge and protection from all
calamities and difficulties to one who may seek or call out for Him. Thus
such a spiritually mature and evolved, enlightened sage is very rare and
the reason why Lord Krishna gives next.


Kumara Vaishnava Sampradaya - Commentary
Lord Krishna reveals that He knows the destiny of all living beings and
this includes their past existence, their present existence and there
future existence. This confirms His omniscient and magnanimous nature that
all movable and immovable sentient beings throughout creation are
continuously objects of His loving concern in the past, present and future;
yet who discerns Him as Vasudeva the cause of all causes, the Supreme Lord
incarnate, always ready to give swift refuge and protection from all
calamities and difficulties to one who may seek or call out for Him. Thus
such a spiritually mature and evolved, enlightened sage is very rare and
the reason why Lord Krishna gives next.