evam—thus; jñātvā—knowing well; kṛtam—performed; karma—work; pūrvaiḥ—by past authorities; api—although; mumukṣubhiḥ—who attained liberation; kuru—just perform; karma—prescribed duty; eva—certainly; tasmāt—therefore; tvam—you; pūrvaiḥ—by the predecessors; pūrvataram—ancient predecessors; kṛtam—as performed.
All the liberated souls in ancient times acted with this understanding and so attained liberation. Therefore, as the ancients, you should perform your duty in this divine consciousness.