O Madhava (husband of the goddess of fortune), great misfortune will surely come upon us if we kill our relatives, though they may be hostile towards us. It is not proper to slay the sons of Dhritarashtra as well as our friends. What happiness will be derived from killing our own kin?
Bhagavad Gita - Chapter 1 - Sainya Darshana - Observing the Armies on the Battlefield
O Janardana, although the hearts of these men are overwhelmed by greed and they cannot see the fault in betraying ones friends and the offense of murdering one’s kinsmen, why should we engage in such a terrible activity, knowing well the consequences?
By destroying one’s relatives, the family traditions are vanquished forever, and when such practices perish, unrighteousness prevails over the entire dynasty.
O Krishna, descendent of Vrishni, when unrighteousness prevails then the women of the family become degraded. When the women become degraded, then undesirable offspring is the result.
Undesirable offspring creates a dreadful condition for both the family and the destroyer of family values. Their forefathers fall down due to the discontinuation of ceremonial libations of food and water.
Such terrible deeds by the destroyers of the family create a population of unwanted progeny that totally annihilates all traditions of family and society.
O Janardana, I have heard that those who destroy familial, social and spiritual values eternally reside in wretched conditions.
Alas, what wickedness we are determined to commit – simply due to our greed to enjoy royal pleasures we are prepared to kill our own relatives!
If the sons of Dhritarashtra, with weapons in their hands, slay me unarmed and unresisting on this battlefield, that would be considered better by me.
Sanjaya said: Having thus spoken these words, Arjuna cast aside his bow and arrows and sat on the chariot, his heart heavy with sorrow.