Bhagavad Gita Chapter 2, Verse 39

एषा तेऽभिहिता साङ्ख्ये बुद्धिर्योगे त्विमां शृणु । बुद्ध्या युक्तो यया पार्थ कर्मबन्धं प्रहास्यसि ॥

eṣā te'bhihitā sāṅkhye buddhir yoge tv imāṁ śṛṇu | buddhyā yukto yayā pārtha karma-bandhaṁ prahāsyasi ||

This wisdom of the Sankhya I have told thee; Now hear the deeper teaching of the Yoga! Endowed with this, O Pritha's Son! thou shalt burst the bonds of Karma through!

Krishna marks a crucial shift here. He's finished explaining Sankhya—the analytical knowledge of the eternal soul versus the temporary body. Now he introduces Karma Yoga, the practical path of action. The key insight: understanding truth isn't enough. You must act from that understanding. He promises that buddhi-yukta (wisdom-empowered action) breaks karma-bandha—the bondage action creates when done with attachment. This is revolutionary: the same actions that bind you can free you, depending on your understanding while acting.