Sanskrit
अहो बत महत्पापं कर्तुं व्यवसिता वयम् । यद्राज्यसुखलोभेन हन्तुं स्वजनमुद्यताः ॥
aho bata mahat pāpaṃ kartuṃ vyavasitā vayam yad rājyasukhalobhena hantuṃ svajanam udyatāḥ
Translation
Alas! in committing a great sin are we engaged, we who are endeavouring to kill our kindred from greed of the pleasures of kingship.
Annie Besant · The Bhagavad-Gita, translated by Annie Besant (4th ed., 1922) — Wikisource · Public Domain
Explanation
The emotional and rhetorical peak of Arjuna’s speech. Everything argued since verse 31 collapses into this single cry — and notice the turn: he now accuses “we,” his own side, of the very greed-driven motive he attributed to the Kauravas back in verse 38. The accusation that began pointed outward has, by this point, turned fully on himself.