एवं ज्ञात्वा कृतं कर्म पूर्वैरपि मुमुक्षुभिः।
कुरु कर्मैव तस्मात्त्वं पूर्वैः पूर्वतरं कृतम्।।4.15।।
।।4.15।।पूर्वकालके मुमुक्षुओंने भी इस प्रकार जानकर कर्म किये हैं इसलिये तू भी पूर्वजोंके द्वारा सदासे किये जानेवाले कर्मोंको ही (उन्हींकी तरह) कर।
Beginning from the previous four verse where Lord Krishna explains: In whatever way one worships Him then that offering He will accept. By this He refuted any conception of partiality of God and allowed Him to propound karma yoga or the performance of prescribed Vedic activities according to status and position in life. Thus knowing that actions performed without egoism do not bind one to material nature. Ancient seekers of moksa or liberation such as King Janaka the father of Sita who performed great deeds of yore for the benefit of the world and for purification of their minds. Therefore Lord Krishna is encouraging Arjuna to follow in their footsteps.
Even after realising the eternally, transcendental position of the Supreme Lord one should still perform Vedic actions as a matter of principle following the tradition of the ancients. The performance of Vedic actions of the ancients means without desires or attachments.
Understanding Lord Krishna as delineated in the previous verses did the ancient seers and sages perform Vedic activities dedicated to Him and thus achieved moksa or liberation from material existence. He is encouraging Arjuna to perform karma yoga or prescribed Vedic activities as the ancients such as Visvavan and Manu performed it in knowledge of Him.
Understanding Lord Krishna as delineated in the previous verses did the ancient seers and sages perform Vedic activities dedicated to Him and thus achieved moksa or liberation from material existence. He is encouraging Arjuna to perform karma yoga or prescribed Vedic activities as the ancients such as Visvavan and Manu performed it in knowledge of Him.