Bhagavad Gita · Chapter 1: Arjuna's Despair

Bhagavad Gita 1.45

aho bata mahatpāpaṃ kartuṃ vyavasitā vayam | yadrājyasukhalobhena hantuṃ svajanamudyatāḥ ||

Alas! What a great sin we have resolved to commit, ready to kill our own people out of greed for the pleasures of a kingdom.

Modern context

Arjuna now accuses himself of greed. A few verses ago greed was the Kauravas' fault alone. He is being too hard on himself: the Pandavas tried every peaceful course first. Guilt can distort judgement as much as pride does.