Calling back the inherent power, not just addressing current weaknesses.
Krishna tells Arjuna, "Abandon your weakness and stand up." At that time, he uses the name "Partha," which reminds one of the heroic mother Pritha, who is Kunti's child. "Paranta" means someone who burns down enemies.
I am not judging Arjuna based solely on his current sorrowful state. You are inherently capable of more than this weakness. I urge you to remember the courage embedded in your name and the strength you have cultivated within yourself. The command "stand up" is also a call to return to your true self.
Japanese Translation from the Geeta Press Edition - Chapter 2, Section 3: "Discard Your Weakness and Stand Tall"
Sanskrit original text
क्लैब्यं मा स्म गमः पार्थ नैतत्त्वय्युपपद्यते ।
क्षुद्रं हृदयदौर्बल्यं त्यक्त्वोत्तिष्ठ परन्तप ॥ ३ ॥
Romanization
klaibyaṃ mā sma gamaḥ pārtha naitat tvayy upapadyate |
kṣudraṃ hṛdayadaurbalyaṃ tyaktvottiṣṭha parantapa || 3 ||
The meaning and translation of section 3 will continue on the next page.
"Do not fall into unmanliness, Arjuna. This is not fitting for you. Abandon this base weakness of heart and rise up, O scorcher of enemies." (3)
The mother of the Pandavas, Kunti, also had the name Pritha. Kunti was a heroic mother.
When Bhagavan Shri Krishna went to Hastinapura as a messenger of peace, attempting to resolve the conflict between the Kauravas and Pandavas amicably, he met his father's sister, Kunti.
Through Krishna, Kunti sent a message filled with extremely heroic sentiments to her son, Arjuna.
In that message, Kunti used the examples of Vidura and his son Sanjay to encourage Arjuna, urging him to establish the Pandavas' right to the kingdom through battle.
Therefore, when Bhagavan Shri Krishna calls Arjuna "Partha," it is to remind him of that message, which is fitting for the mother of a true Kshatriya.
And in the first half of this verse, Arjuna himself seems to be trying to show that he is a hero and a son worthy of his mother. Such a person should not be overwhelmed by unmanliness or cowardice; it would be completely out of place.
Arjuna possessed unparalleled courage and skill as a warrior. His power was enough to inspire fear in the hearts of even the greatest heroes and generals. Despite this, he was now in a pitiful state: his hair stood on end, his face drooped and trembled, his Gandiva bow almost slipped from his hand, his heart was filled with sorrow, and he was caught in confusion and bewilderment. This unmanly weakness was not befitting of him at all.
Those who burn down enemies with intense attacks are called "Parantapa."
The intention of calling Arjuna "Parantapa" here is to remind people that he is famous as someone who "burns down enemies."
How is it possible that Arjuna, who defeated such powerful demons as the Nivata-kavacha, can now exhibit a cowardly and unmanly attitude, which is the opposite of what a Kshatriya should possess?
Such an attitude will not intimidate enemies; instead, it will only please them.
The master instructs Arjuna to "shake off this base weakness and stand up," indicating that there is no place for cowardice in the heart of a hero like Arjuna. It is something that must always be rejected by heroes, and only cowards who fear battle possess it.
Therefore, the Lord is urging Arjuna to immediately discard it and strengthen his resolve for battle.