Bhagavad Gita 2.31
स्वधर्ममपि चावेक्ष्य न विकम्पितुमर्हसि । धर्म्याद्धि युद्धाच्छ्रेयोऽन्यत्क्षत्रियस्य न विद्यते ॥
sva-dharmam api cāvekṣya na vikampitum arhasi | dharmyād dhi yuddhāc chreyo 'nyat kṣatriyasya na vidyate ||
Translation
Looking, too, to your own duty, you should not waver, for there is nothing better for a Kshatriya than a righteous battle.
Reflection
What work is yours and no one else's right now, even when it is hard?
Read this verse in its chapter: Chapter Two
Svadharma. Your own duty. The word that will carry the rest of the chapter's argument about action. Not duty in the abstract, not the duty that someone else has. The one that is yours. For a Kshatriya, a righteous battle. Krishna is not glorifying war; he is naming a fit. The work that fits the person comes with its own claim. The verse closes the metaphysical argument and opens the action argument. The same person who has just been told the soul cannot die is now being told that the body, while it lives, has work that fits it.