न त्वेवाहं जातु नासं न त्वं नेमे जनाधिपाः।
न चैव न भविष्यामः सर्वे वयमतः परम्।।2.12।।
।।2.12।।किसी कालमें मैं नहीं था और तू नहीं था तथा ये राजालोग नहीं थे यह बात भी नहीं है और इसके बाद मैं तू और राजलोग ये सभी नहीं रहेंगे यह बात भी नहीं है।
The underlying reason these relations or any relations should never be considered objects of grief is now being given by the Supreme Lord Krishna stating: never at any time did I the Supreme Lord not exist. Even though the Supreme Lords eternally pure conscious spiritual body which is associated with His divine pastimes appears to come into existence and appears to cease to exist; He is now confirming unconditionally that He is beginningless, existing always eternally and that never did He nor Arjuna, nor all the kings, nor any living entity not exist, but existed always being a micro part of Himself and even so it is not that the living entities shall not exist hereafter for they certainly will exist, their eternal soul having neither birth or death, they should not be grieved for.
Why is such a statement being put forth? Never was there a time when I was not. The Supreme Lord Krishna being eternal, such a statement is self evident; but it was only given to illustrate the point that even as the Supreme Lord is eternal as confirmed in the Vedic scriptures, even so, you and all these kings of the earth are also eternal. Now begins the summation. Lord Krishna informs Arjuna that due to fraternal feelings he was neglecting his own nature not to fulfil his duty according to righteousness. Is it because of the fear of losing his life or is it because of a lapse in consciousness? The physical body is in all respects subject to destruction so there is no purpose in being frightened, nor should there be any concern over the possibility of destruction of the individual consciousness because its nature is also eternal. In the Skanda Purana it is stated: There is no possibility of any destruction of the Ultimate Consciousness of the Supreme Lord the same similarly applies to the individual consciousness of all living entities. The Supreme Lord is eternal among the eternal, the Ultimate Consciousness among all individual consciousness, the One who so desiring manifests as the many. The connection and disconnection from the physical body is known as birth and death. Such is this reality for all living entities; but for the eternal and transcendental Supreme Lord this reality has no relevance and is in no way applicable. Since the Supreme Lord may appear to have the destruction of His transcendental body and the transmigration of His transcendental consciousness to those who are deluded; this point is being clarified by the word tu in the verse beginning na tu evaham meaning but I certainly never. Although such a doubt did not arise in the case of Arjuna, the resplendent Supreme Lord Krishna elucidates this point for the benefit and welfare of all the worlds. Even though this dialogue is actually spoken in confidence, through the medium of Mahabharata by the mercy of Krishna Dvaipayana Vyasa it is disseminated throughout the universe.
There is no commentary for this verse.
Next it might be questioned why do the wise not lament for the living or the dead? Lord Krishna here gives the reason to this establishing that the soul is eternal and not the physical body. The words na and eva meaning certainly never, destroys any conception of the physical body being able to ever be equated with the soul. As the Ultimate Soul among all individual souls it is not that the Supreme Lord did not exist before this time for He always existed. Similarly it is not that Arjuna and all the kings on the battlefield did not exist before this time, for they all certainly existed for the immortal soul transmigrates from body to body. By the authority of Bhagavad-Gita this verse spoken by the Supreme Lord Krishna refutes such statements as: and it is not again shall we all exist hereafter from the present time till the end to come, meaning that indeed we shall all exist. So this explains and puts into the proper perspective the dissolution of the material manifestation at the time of universal destruction. By negating the origin and destruction of the soul, its very existence is proved in the middle. In this way the souls existence is proven in all three being creation, maintenance and destruction. All souls are immortal being eternal and hence should never be grieved for.