In order to remove this delusion which had overtaken Arjuna, what did the Bhagavân say? As I always preach that you should not decry a man by calling him a sinner, but that you should draw his attention to the omnipotent power that is in him, in the same way does the Bhagavan speak to Arjuna. नैतत्त्वय्युपपद्यते — "It doth not befit thee!" "Thou art Atman imperishable, beyond all evil. Having forgotten thy real nature, thou hast, by thinking thyself a sinner, as one afflicted with bodily evils and mental grief, thou hast made thyself so — this doth not befit thee!" — so says the Bhagavan: क्लैब्यं मा स्म गमः पार्थ — Yield not to unmanliness, O son of Pritha. There is in the world neither sin nor misery, neither disease nor grief; if there is anything in the world which can be called sin, it is this — 'fear'; know that any work which brings out the latent power in thee is Punya (virtue); and that which makes thy body and mind weak is, verily, sin. Shake off this weakness, this faintheartedness! क्लैब्यं मा स्म गमः पार्थ। — Thou art a hero, a Vira; this is unbecoming of thee."
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 4/Lectures and Discourses/Thoughts on the Gita