BG 9.12

9.12 मोघाशाः of vain hopes? मोघकर्माणः of vain actions? मोघज्ञानाः of vain knowledge? विचेतसः senseless? राक्षसीम् devilish? आसुरीम् undivine? च and? एव verily? प्रकृतिम् nature? मोहिनीम् deceitful? श्रिताः (are) possessed of.Commentary They entertain vain hopes? for there can be no hope in perishable forms. It is vain hope because they run after transient objects and miss the Eternal. It is vain action? because it is not performed by them as sacrifice unto the Lord. The Agnihotra (a ritual) and other actions performed by them are fruitless? because they insult the Lord. They are senseless. They have no,discrimination. They have no idea of the eternal Self. They worship their body only. They behold no self beyond the body. They neglect their own Self. They do atrocious crimes and cruel actions. They rob others property and murder people. They partake of the nature of the demons and the undivine beings.The Rakshasa are Tamasic and the Asuras are Rajasic.Prakriti means here Svabhava (ones own nature).They see the external human body only. They have no knowledge of the Self that dwells within the body. They do not behold God in the universe. They life for eating and drinking only.He who entertains hope of getting the rewards of actions through mere Karma alone? without the grace of the Lord is one of empty hope and empty deed. Karmas are insentient. They cannot give rewards independently. The omniscient Lord Who knows the relationship between Karmas and their fruits can dispense them. He who has obtained knowledge from books which do not admit of the existence of the Self and which do not speak of the Self is one of empty knowledge. This will not give any reward. That knowledge obtained through the study of spiritual books which treat of Brahman alone can give the reward. (Cf.VII.15XVI.6?20)

— vedicscriptures · exposition · source ↗

There are many devotees who assume themselves to be in Kṛṣṇa consciousness and devotional service but at heart do not accept the Supreme Personality of Godhead, Kṛṣṇa, as the Absolute Truth. For them, the fruit of devotional service – going back to Godhead – will never be tasted. Similarly, those who are engaged in fruitive pious activities and who are ultimately hoping to be liberated from this material entanglement will never be successful either, because they deride the Supreme Personality of Godhead, Kṛṣṇa. In other words, persons who mock Kṛṣṇa are to be understood to be demonic or atheistic. As described in the Seventh Chapter of Bhagavad-gītā , such demonic miscreants never surrender to Kṛṣṇa. Therefore their mental speculations to arrive at the Absolute Truth bring them to the false conclusion that the ordinary living entity and Kṛṣṇa are one and the same. With such a false conviction, they think that the body of any human being is now simply covered by material nature and that as soon as one is liberated from this material body there is no difference between God and himself. This attempt to become one with Kṛṣṇa will be baffled because of delusion. Such atheistic and demoniac cultivation of spiritual knowledge is always futile. That is the indication of this verse. For such persons, cultivation of the knowledge in the Vedic literature, like the Vedānta-sūtra and the Upaniṣads, is always baffled. It is a great offense, therefore, to consider Kṛṣṇa, the Supreme Personality of Godhead, to be an ordinary man. Those who do so are certainly deluded because they cannot understand the eternal form of Kṛṣṇa. The Bṛhad-viṣṇu-smṛti clearly states: yo vetti bhautikaṁ dehaṁ kṛṣṇasya paramātmanaḥ sa sarvasmād bahiṣ-kāryaḥ śrauta-smārta-vidhānataḥ mukhaṁ tasyāvalokyāpi sa-celaṁ snānam ācaret “One who considers the body of Kṛṣṇa to be material should be driven out from all rituals and activities of the śruti and the smṛti. And if one by chance sees his face, one should at once take bath in the Ganges to rid himself of infection.” People jeer at Kṛṣṇa because they are envious of the Supreme Personality of Godhead. Their destiny is certainly to take birth after birth in the species of atheistic and demoniac life. Perpetually, their real knowledge will remain under delusion, and gradually they will regress to the darkest region of creation.

— vedicscriptures · exposition · source ↗