BG 9.3

9.3 अश्रद्दधानाः without faith? पुरुषाः men? धर्मस्य of duty? अस्य of this? परन्तप O scorcher of foes? अप्राप्य without attaining? माम् Me? निवर्तन्ते return? मृत्युसंसारवर्त्मनि in the path of this world of death.Commentary Arjuna asks? O Lord? why do people not attempt to attain this knowledge of the Self when it can be easily attained? when it is the highest of all things? and when it gives the greatest benefits All should certainly attain this knowledge. The Lord replies? O My beloved disciple? people have no faith in this Dhrama or knowledge and so return to the path of this world of death. Even if they strive with the help of the means of their own imagination they cannot attain Me as they are not endowed with the right means prescribed by the scriptures.Dharma means law? religion? knowledge of the Self.This faith is not mere intellectual belief in certain dogmas or principles. It is not merely belief in the statement of another. It is unshakable firm inner conviction that the knowledge of the Self alone can give one supreme peace? immortality and eternal bliss. It was this strong and unflinching faith of Sri Sankara that goaded him to leave his mother and take shelter under the kind protection of his Guru Sri Govindapada for attaining this knowledge which is the supreme purifier? intuitional? accordig to righteousness? very easy to perform? and imperishable. It was the strong faith of Lord Buddha that induced him to have that iron determination which he expressed in these words? I will not budge an inch from my seat till I get illumination. Faith goes hand in hand with fiery determination.The Lord has eulogies the knowledge of the Self in the first two verses by the positive method (Vidhi Mukhastuti). He has extolled it in the third verse by the negative method (Nishedha Mukhastuti). The benefits of obtaining knowledge of the Self are described in the first and the second verses. This is Vidhi Mukhastuti. The disastrous effects that result from not obtaining the knowledge of the Self are described in the third verse. This is Nishedha Mukhastuti.The greedy? lustful and sinful persons who are the followers of the philosophy of the flesh? who lead the life of the demons? who worship the body taking it to be the Self? and who have no faith in the knowledge of the Self? do not reach Me. They do not even possess an iota of devotion which is also one of the paths that lead men to Me. They remain in the path of the world of death which leads to hell and the lower births of animals? worms? etc.

— vedicscriptures · exposition · source ↗

The faithless cannot accomplish this process of devotional service; that is the purport of this verse. Faith is created by association with devotees. Unfortunate people, even after hearing all the evidence of Vedic literature from great personalities, still have no faith in God. They are hesitant and cannot stay fixed in the devotional service of the Lord. Thus faith is a most important factor for progress in Kṛṣṇa consciousness. In the Caitanya-caritāmṛta it is said that faith is the complete conviction that simply by serving the Supreme Lord, Śrī Kṛṣṇa, one can achieve all perfection. That is called real faith. As stated in the Śrīmad-Bhāgavatam (4.31.14) , yathā taror mūla-niṣecanena tṛpyanti tat-skandha-bhujopaśākhāḥ prāṇopahārāc ca yathendriyāṇāṁ tathaiva sarvārhaṇam acyutejyā “By giving water to the root of a tree one satisfies its branches, twigs and leaves, and by supplying food to the stomach one satisfies all the senses of the body. Similarly, by engaging in the transcendental service of the Supreme Lord one automatically satisfies all the demigods and all other living entities.” Therefore, after reading Bhagavad-gītā one should promptly come to the conclusion of Bhagavad-gītā : one should give up all other engagements and adopt the service of the Supreme Lord, Kṛṣṇa, the Personality of Godhead. If one is convinced of this philosophy of life, that is faith. Now, the development of that faith is the process of Kṛṣṇa consciousness. There are three divisions of Kṛṣṇa conscious men. In the third class are those who have no faith. Even if they are officially engaged in devotional service, they cannot achieve the highest perfectional stage. Most probably they will slip, after some time. They may become engaged, but because they haven’t complete conviction and faith, it is very difficult for them to continue in Kṛṣṇa consciousness. We have practical experience in discharging our missionary activity that some people come and apply themselves to Kṛṣṇa consciousness with some hidden motive, and as soon as they are economically a little well situated they give up this process and take to their old ways again. It is only by faith that one can advance in Kṛṣṇa consciousness. As far as the development of faith is concerned, one who is well versed in the literatures of devotional service and has attained the stage of firm faith is called a first-class person in Kṛṣṇa consciousness. And in the second class are those who are not very advanced in understanding the devotional scriptures but who automatically have firm faith that kṛṣṇa-bhakti, or service to Kṛṣṇa, is the best course and so in good faith have taken it up. Thus they are superior to the third class, who have neither perfect knowledge of the scriptures nor good faith but by association and simplicity are trying to follow. The third-class person in Kṛṣṇa consciousness may fall down, but when one is in the second class he does not fall down, and for the first-class person in Kṛṣṇa consciousness there is no chance of falling down. One in the first class will surely make progress and achieve the result at the end. As far as the third-class person in Kṛṣṇa consciousness is concerned, although he has faith in the conviction that devotional service to Kṛṣṇa is very good, he has not yet gained adequate knowledge of Kṛṣṇa through the scriptures like Śrīmad-Bhāgavatam and Bhagavad-gītā . Sometimes these third-class persons in Kṛṣṇa consciousness have some tendency toward karma-yoga and jñāna-yoga, and sometimes they are disturbed, but as soon as the infection of karma-yoga or jñāna-yoga is vanquished, they become second-class or first-class persons in Kṛṣṇa consciousness. Faith in Kṛṣṇa is also divided into three stages and described in Śrīmad-Bhāgavatam . First-class attachment, second-class attachment and third-class attachment are also explained in Śrīmad-Bhāgavatam in the Eleventh Canto. Those who have no faith even after hearing about Kṛṣṇa and the excellence of devotional service, who think that it is simply eulogy, find the path very difficult, even if they are supposedly engaged in devotional service. For them there is very little hope of gaining perfection. Thus faith is very important in the discharge of devotional service.

— vedicscriptures · exposition · source ↗