Just like government gives you license, say for... One is... Every businessman is given some license. The municipality gives license. The sales tax department gives license, certificate. There are so many licenses a businessman has to follow, income tax licenses. But there are rules and regulations because all these departments know it very well that any businessman or karmī, he is sure to commit sinful activities. Therefore there are so many regulations just to stop him as far as possible from sinful activities. Similarly, there are twenty kinds of viṁśati-prakāśa-dharma-śāstra. How one can live faithfully, religiously, the directions are there in twenty kinds of scriptures made by Parāśara, Manu, and many other sages. There are different types. So therefore it is said here that na niṣkṛtair uditair brahma-vādibhiḥ. Brahma-vādibhiḥ. Brahma-vādī means those who are trying to lead persons to realize Brahman. The whole direction of the Vedic injunction is to understand that "I am not this material body; I am spirit soul." And in order to understand this factual position there are so many directions in the dharma-śāstra or religious scriptures. And you'll find here the Yamadūta or Yamarāja will speak, dharmaṁ tu sākṣād bhagavat-praṇītam (SB 6.3.19).
Really, originally, the, I mean to say regulator of religious principle is the Supreme Personality of Godhead. Therefore Kṛṣṇa is sometimes addressed as dharma-setu. Setu means bridge. We have to cross over. The whole plan is that we have to cross over the ocean of nescience in which we are now fallen. The material existence means it is ocean of ignorance and nescience, and one has to cross over it. Then he gets the real life. This is not real life. Bhūtvā bhūtvā pralīyate (BG 8.19). We are... Na hanyate hanyamāne śarīre (BG 2.20). People are so foolish. They do not take it very seriously because they do not know that they are eternal. That is another ignorance. Bhagavad-gītā begins from this knowledge that living soul is eternal, na hanyate hanyamāne śarīre (BG 2.20). But they are in ignorance. They take it as a matter of fact that "This life, this body, is all in all, and after death there is no more any body, so who cares for sinful activities?" That is another ignorance. And in order to give them direction there are so many religious scriptures in human society. Therefore it is said, dharmeṇa hīnāḥ paśubhiḥ samānāḥ. If one is not following the principles of religious scriptures... It doesn't matter whether it is Hindu religion or Christian religion or Muslim religion. It doesn't matter. But human civilization, a civilized human being must follow some religious principles. That is the aim of human life. And anyone who does not follow any religious scripture, he is simply animal. That is the position of the present world. We may claim to be Hindu or Muslim or Christian, but nobody cares for religion. They are simply karmīs. Therefore they are all sinful.