न त्वेवाहं जातु नासं न त्वं नेमे जनाधिपाः। न चैव न भविष्यामः सर्वे वयमतः परम्॥
na tveva'ham jatu nasam na tvam neme janadhipah na chaiva na bhavishyamah sarve vayam atah param
Translation
There was never a time when I did not exist, nor you, nor all these kings. Nor will any of us cease to exist in the future.
Commentary
Krishna establishes the foundational truth of the Gita — the soul is eternal. We have always existed and will always exist. Death is merely a change of body, not the end of existence.