Knowledge does not arise without the performance of actions, the rites such as sacrifice, done in this birth or in another. Such actions, by destroying the accumulated sins, become the cause of purity of being, and through that, by giving rise to knowledge, the cause of steadfastness in knowledge; so the remembered text, 'knowledge arises for men by the destruction of sinful action; one sees the Self in oneself, as in a polished surface' (Mahābhārata, Śānti 204.8) and the like. So, by the non-undertaking of actions, by not performing them, a man does not reach actionlessness, the state free of action, the steadfastness in the yoga of knowledge, that is, abiding in the very form of the actionless Self. From the statement that one does not reach actionlessness by the non-undertaking of actions, it is understood, by the reverse, that one does reach actionlessness by the undertaking of actions. Why so? Because the undertaking of action is itself the means to actionlessness, and without a means there is no reaching of the end. That the yoga of action is the means to the yoga of knowledge, which is marked as actionlessness, is set out both in scripture and here. In scripture, with regard to the world of the Self that is the thing to be known: 'this it is that the brāhmaṇas seek to know by the recitation of the Veda, by sacrifice' (Bṛhadāraṇyaka 4.4.22) and the like. And here too He will set it out: 'but renunciation, O mighty-armed one, is hard to reach without yoga' (Gītā 5.6), 'the yogins perform action, abandoning attachment, for the purification of the self' (Gītā 5.11), 'sacrifice, gift and austerity are the purifiers of the wise' (Gītā 18.5) and the like. Now, in such texts as 'having given fearlessness to all beings, let him practise actionlessness', actionlessness is shown to be reached even by the renunciation of the action that is to be done; and in the world it is more widely held that actionlessness comes from the non-undertaking of actions; so it would seem that for one who seeks actionlessness there is no use in undertaking action. To this He says 'and not by renunciation alone'. Not by renunciation alone, by the mere relinquishing of action devoid of knowledge, does one reach the perfection marked as actionlessness, the steadfastness in the yoga of knowledge. Why is it that a man does not reach that perfection by the mere renunciation of action devoid of knowledge? In answer He says.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.