Chapter 2 · The Yoga of Knowledge · Krishna said
Bhagavad Gita 2.18 — Bodies end, soul does not
अन्तवन्त इमे देहा नित्यस्योक्ताः शरीरिणः। अनाशिनोऽप्रमेयस्य तस्माद्युध्यस्व भारत ॥
antavanta ime dehā nityasyoktāḥ śarīriṇaḥ | anāśino'prameyasya tasmādyudhyasva bhārata ||
Meaning
These bodies of the eternal, imperishable and immeasurable soul are said to have an end. So fight, Arjuna.