Gita Chapter 2.21to 2.25

Vedaavinaashinam nityam ya enam ajam avyayam;

Katham sa purushah paartha kam ghaatayati hanti kam.

21. Whosoever knows Him to be indestructible, eternal, unborn and inexhaustible, how can that man slay, O Arjuna, or cause to be slain?

Vaasaamsi jeernaani yathaa vihaaya

Navaani grihnaati naro’paraani;

Tathaa shareeraani vihaaya jeernaa

Nyanyaani samyaati navaani dehee.

22. Just as a man casts off worn-out clothes and puts on new ones, so also the embodied Self casts off worn-out bodies and enters others that are new.

Nainam cchindanti shastraani nainam dahati paavakah;

Na chainam kledayantyaapo na shoshayati maarutah.

23. Weapons cut It not, fire burns It not, water wets It not, wind dries It not.

COMMENTARY: The Self is partless. It is infinite and extremely subtle. So the sword cannot cut It, fire cannot burn It, wind cannot dry It.

Acchedyo’yam adaahyo’yam akledyo’shoshya eva cha;

Nityah sarvagatah sthaanur achalo’yam sanaatanah.

24. This Self cannot be cut, burnt, wetted nor dried up. It is eternal, all-pervading, stable, ancient and immovable.

Avyakto’yam achintyo’yam avikaaryo’yam uchyate;

Tasmaad evam viditwainam naanushochitum arhasi.

25. This (Self) is said to be unmanifested, unthinkable and unchangeable. Therefore, knowing This to be such, thou shouldst not grieve.