The first chapter of the Bhagavad Gita - Arjuna Vishada Yoga introduces the setup, the setting, the characters and the circumstances that led to the epic battle of Mahabharata, fought between the Pandavas and the Kauravas. It outlines the reasons that led to the revelation of the of Bhagavad Gita. As both armies stand ready for the battle, the mighty warrior Arjuna, on observing the warriors on both sides becomes increasingly sad and depressed due to the fear of losing his relatives and friends and the consequent sins attributed to killing his own relatives. So, he surrenders to Lord Krishna, seeking a solution. Thus, follows the wisdom of the Bhagavad Gita.
Therefore, it is not proper for us to kill the sons of Dhrtarastra who are our own relatives. For, O Madhava, how can we be happy by killing our kinsmen?OPEN VERSE
O Janardana, although these people, whose hearts have become perverted by greed, do not see the evil arising from destroying the family and sin in hostility towards, friends,OPEN VERSE
yet how can we who clearly see the evil arising from destroying the family remain unaware of (the need of) abstaining from this sin?OPEN VERSE
From the ruin of the family are totally destroyed the traditional rites and duties of the family. When rites and duties are destroyed, vice overpowers the entire family also.OPEN VERSE
O Krsna, when vice predominates, the women of the family become corrupt. O descendent of the Vrsnis, when women become corrupted, it results in the intermingling of castes.OPEN VERSE
And the intermingling in the family leads the ruiners of the family verily into hell. The forefathers of these fall down (into hell) because of being deprived of the offerings of rice-balls and water.OPEN VERSE