BG 2.26

अथ चैनं नित्यजातं नित्यं वा मन्यसे मृतम्। तथापि त्वं महाबाहो नैवं शोचितुमर्हसि।।2.26।।

atha chainaṁ nitya-jātaṁ nityaṁ vā manyase mṛitam tathāpi tvaṁ mahā-bāho naivaṁ śhochitum arhasi

atha—if, however; cha—and; enam—this soul; nitya-jātam—taking constant birth; nityam—always; vā—or; manyase—you think; mṛitam—dead; tathā api—even then; tvam—you; mahā-bāho—mighty-armed one, Arjun; na—not; evam—like this; śhochitum—grieve; arhasi—befitting

Translation

But even if thou thinkest of It as constantly being born and constantly dying, even then, O mighty-armed one, thou shouldst not grieve.

Commentary

2.26 अथ now? च and? एनम् this (Self)? नित्यजातम् constantly born? नित्यम् constantly? वा or? मन्यसे thinkest? मृतम् dead? तथापि even then? त्वम् thou? महाबाहो mightyarmed? न not? एवम् thus? शोचितुम् to grieve? अर्हसि (thou) oughtest.Commentary Lord Krishna here? for the sake of argument? takes up the popular supposition. Granting that the Self is again and again born whenever a body comes into being?

and again and again dies whenever the body dies? O mightyarmed (O Arjuna of great valour and strength)? thou shouldst not grieve thus? because birth is inevitable to want is dead and death is inevitable to what is born. This is the inexorable or unrelenting Law of Nature.