Chapter 1 · Arjuna's Despair · Arjuna said
Bhagavad Gita 1.40 — Loss of family dharma
कुलक्षये प्रणश्यन्ति कुलधर्माः सनातनाः। धर्मे नष्टे कुलं कृत्स्नमधर्मोऽभिभवत्युत ॥
kulakṣaye praṇaśyanti kuladharmāḥ sanātanāḥ | dharme naṣṭe kulaṃ kṛtsnamadharmo'bhibhavatyuta ||
Meaning
When a family is destroyed, its age-old traditions of dharma are lost, and when dharma is lost, wrongdoing takes over the whole family.