हतो वा प्राप्स्यसि स्वर्गं जित्वा वा भोक्ष्यसे महीम् ।
तस्मादुत्तिष्ठ कौन्तेय युद्धाय कृतनिश्चयः ॥
O son of Kunti, either you will be killed on the battlefield and attain the heavenly planets, or you will conquer and enjoy the earthly kingdom. Therefore get up and fight with determination.
अगर युद्धमें तू मारा जायगा तो तुझे स्वर्गकी प्राप्ति होगी और अगर युद्धमें तू जीत जायगा तो पृथ्वीका राज्य भोगेगा। अतः हे कुन्तीनन्दन तू युद्धके लिये निश्चय करके खड़ा हो जा।
Even though there was no certainty of victory for Arjuna’s side, he still had to fight; for, even being killed there, he could be elevated into the heavenly planets.
This is the 37th verse of 2nd chapter of Bhagavad-gita.
Please, refer following Bhagavad-gita As It Is Lecture to understand the verse in detail.
Devotee: “Your enemies will describe you in many unkind words and scorn your ability. What could be more painful for you (BG 2.36)?” 37: “O son of Kuntī, either you will be killed on the battlefield and attain the heavenly planets or you will conquer and enjoy the earthly kingdom. Therefore get up and fight with determination (BG 2.37).” 38: “Do thou fight for the sake of fighting without considering happiness or distress, loss or gain (BG 2.38).”
Prabhupāda: This is duty. One has to execute duty without any consideration of loss and gain. That is duty, observing duty. Just see. “You are kṣatriya. There is necessity of this fighting. So you should not consider whether you are gaining or losing. It is your duty to fight.” Go on.
Devotee: “And by so doing you shall never incur sin.”
Prabhupāda: Yes. If you execute your duty nicely, there is no question of sin. To execute duty is piety. Yes.