एवं बहुविधा यज्ञा वितता ब्रह्मणो मुखे। कर्मजान्विद्धि तान्सर्वानेवं ज्ञात्वा विमोक्ष्यसे ॥

evaṁ bahu-vidhā yajñā vitatā brahmaṇo mukhe karma-jān viddhi tān sarvān evaṁ jñātvā vimokṣhyase

Many and various sacrifices are thus spread out before the Eternal. Know thou that all these are born of action, and thus knowing thou shalt be free.

In plain words: Krishna says there are many kinds of sacrifice, and all of them come from action. Knowing this truth will set Arjuna free.