Chapter 1 · Arjuna's Despair · Arjuna said
Bhagavad Gita 1.45 — Arjuna's regret
अहो बत महत्पापं कर्तुं व्यवसिता वयम्। यद्राज्यसुखलोभेन हन्तुं स्वजनमुद्यताः ॥
aho bata mahatpāpaṃ kartuṃ vyavasitā vayam | yadrājyasukhalobhena hantuṃ svajanamudyatāḥ ||
Meaning
Alas, how strange that we have set out to commit a great sin, ready to kill our own people out of greed for kingdom and pleasure.