Chapter 1 · Arjuna's Despair · Arjuna said
Bhagavad Gita 1.34 — All are relatives
आचार्याः पितरः पुत्रास्तथैव च पितामहाः। मातुलाः श्वशुराः पौत्राः श्यालाः सम्बन्धिनस्तथा ॥
ācāryāḥ pitaraḥ putrāstathaiva ca pitāmahāḥ | mātulāḥ śvaśurāḥ pautrāḥ śyālāḥ sambandhinastathā ||
Meaning
They are teachers, fathers, sons, grandfathers, maternal uncles, fathers-in-law, grandsons, brothers-in-law and other relatives.