I will declare that which is to be known, knowing which one attains immortality: the beginningless supreme Brahman, which is said to be neither being nor non-being.
ज्ञेयं यत्तत्प्रवक्ष्यामि यज्ज्ञात्वामृतमश्नुते |
अनादिमत्परं ब्रह्म न सत्तन्नासदुच्यते ||१३-१३||
Source
The Bhagavad Gita, translated and commentated by S. Radhakrishnan, is one of the most scholarly and accessible English renderings of Hinduism's most beloved scripture — the dialogue between Arjuna and Lord Krishna on the battlefield of Kurukshetra. Radhakrishnan, philosopher and statesman, brings both rigorous intellectual insight and genuine spiritual depth to his translation and notes. This edition is treasured for its ability to illuminate the Gita's universal spiritual teaching across cultural and philosophical boundaries.
One who truly understands my divine birth and action in this way is not reborn on leaving the body, but comes to me, Arjuna.
जन्म कर्म च मे दिव्यमेवं यो वेत्ति तत्त्वतः |
त्यक्त्वा देहं पुनर्जन्म नैति मामेति सोऽर्जुन ||४-९||
Only knowledge of God can grant immortality.
Whoever is ignorant of himself is yet more ignorant of other things; and inasmuch as a man is bound to know God, he must first know himself, in order that by rightly perceiving his own temporality he may recognize the eternity of God.
If the soul is to know God, it must know Him outside time and place, since God is neither in this or that, but One and above them.