In plain words
In the world there may be wicked sons, but there is no wicked mother
The time came for war to begin between the Pāṇḍavas and the Kauravas. Wanting to stop the war, Kṛṣṇa tried in many ways to bring about peace between the two sides. ‘War brings hardship to the people and to kinsmen. Lives come to harm. No one should wage a war like this’: even then this was Kṛṣṇa's good resolve. Teaching in many ways that it was not good to torment the people merely over differences of opinion between individuals, Kṛṣṇa went as envoy. Arjuna grew angry. ‘Kṛṣṇa! What is this mission of peace?
Is it possible to make nectar out of the deadly poison? like scattering jasmine flowers in a fearful forest fire; is good advice any good before the wicked? O treasury of virtues! Why these words of peace any more, Gopāla!
Enough, enough now! Why waste more time instead of saying we are ready for war? Can the north and south poles meet? Give up your mission now,’ he said.
Then both sides decided that the war of the Kauravas and Pāṇḍavas would begin the next day. Kuntī Devī came to know of this. She was mother to the Pāṇḍavas. Not to the Pāṇḍavas alone: she was mother to Karṇa too! Karṇa was Kuntī's first son. He was born to her by a boon of the Sun. He wore the armour and earrings he was born with. Knowing this Satya, Kuntī Devī went about waiting moment by moment, poor woman, for a chance to speak to Karṇa! There may well be wicked sons, but there is no wicked mother in this world. So, out of a mother's love, Kuntī Devī kept waiting for Karṇa in this way.