क्लैब्यं मा स्म गमः पार्थ नैतत्त्वय्युपपद्यते।क्षुद्रं हृदयदौर्बल्यं त्यक्त्वोत्तिष्ठ परन्तप॥
klaibyaṃ mā sma gamaḥ pārtha naitat tvayyupapadyatekṣudraṃ hṛdaya-daurbalyaṃ tyaktvottiṣṭha parantapa
Word by word
The verse says
Do not give in to this feebleness, Arjuna. It does not suit you. Shake off this small weakness of heart and stand up, you who burn through your enemies.
In plain words
Krishna keeps pushing. Stand up.
He calls the weakness kṣudram - petty, small. Not wicked. Small. Of all the things he could have called Arjuna's grief, he picks the word that means it is beneath him.
Then he names him by what he has done before: scorcher of enemies. He is telling Arjuna who he is, at the moment Arjuna has forgotten.
Where you've felt this · in sport
The goalkeeper has frozen after letting in a soft goal. The coach does not tell him the pressure is understandable. He mentions the save the boy made in April, and sends him back out. The understanding can wait until Monday.
Going deeper
Krishna's first move is not an argument at all. It is a jolt, and the word he picks is deliberately brutal.
Klaibya means impotence, unmanliness. It is harsher and more gendered than most English versions admit, and anything that renders it simply as weakness is softening it. A reader deserves to know that.
Why reach for it? Because Arjuna has sat down, and nothing can be taught to a man in that position. The first job is to get him upright.
It is worth noticing what Krishna does not do. He never says the war is just. He does not answer a single one of Arjuna's points from Chapter 1 - not the ruined families, not the dead ancestors, not the sin. None of it ever gets a reply.
The teaching proper does not start until verse 11. Everything before that is ground-clearing, and Arjuna discovering that his position cannot survive being leaned on. That is worth knowing about your own reasons too. The ones that collapse under a push were rarely the real ones.