On behalf of Krsna
Bhagavad-gita As It Is
BG Chapters 1 - 6
BG 3.19, Purport:
Vedic rituals, like prescribed sacrifices, are performed for purification of impious activities that were performed in the field of sense gratification. But action in Kṛṣṇa consciousness is transcendental to the reactions of good or evil work. A Kṛṣṇa conscious person has no attachment for the result but acts on behalf of Kṛṣṇa alone. He engages in all kinds of activities, but is completely nonattached.