In the Īśopaniṣad it is said that everything is related to the Supreme Brahman, or Kṛṣṇa, and thus everything belongs to Him only. One who knows perfectly well that everything belongs to Kṛṣṇa, that He is the proprietor of everything and that, therefore, everything is engaged in the service of the Lord, naturally has nothing to do with the results of his activities, whether virtuous or sinful. Even one's material body, being a gift of the Lord for carrying out a particular type of action, can be engaged in Kṛṣṇa consciousness. It is then beyond contamination by sinful reactions, exactly as the lotus leaf, though remaining in the water, is not wet. The Lord also says in the Gītā (3.30), mayi sarvāṇi karmāṇi sannyasya: "Resign all works unto Me (Kṛṣṇa)."
(Bhagavad-Gita-------5:10-------purport).

The materialistic men want to work hard and enjoy fruitive results for sense enjoyment. Thus they are committing many types of sins at every step of life. Those, however, who are consciously engaged in the devotional service of the Lord are transcendental to all varieties of sin and virtue. Their activities are free from the contamination of the three modes of material nature. For the devotees there is no need for performance of prescribed sacrifices because the very life of the devotee is a symbol of sacrifice. But persons who are engaged in fruitive activities for sense enjoyment must perform the prescribed sacrifices because that is the only means to get free from the reaction of all sins committed by fruitive workers. Sacrifice is the means for counteracting such accumulated sins.
(Srimad Bhagavatam------1:16:20--------purport).

The Lord wants all living entities, who are His parts and parcels, to live with Him in the transcendental world, and for enlightening conditioned souls in the material world, all the Vedas and the revealed scriptures are there—expressly to recall the conditioned souls back home, back to Godhead. Unfortunately, the conditioned living entities, although suffering continually the threefold miseries of conditioned life, are not very serious about going back to Godhead. It is due to their misguided way of living, complicated by sins and virtues. Some of them who are virtuous by deeds begin to reestablish the lost relation with the Lord, but they are unable to understand the personal feature of the Lord. The real purpose of life is to make contact with the Lord and be engaged in His service.
(Srimad Bhagavatam------2:2:14--------purport).

Everyone was engaged in material enjoyment, whether sinfully or virtuously. No one was interested in the transcendental service of the Lord, which can give total relief from the repetition of birth and death.
Advaita Ācārya saw the entire world to be engaged in activities of material piety and impiety, without a trace of devotional service, or Kṛṣṇa consciousness, anywhere. The fact is that in this material world there is no scarcity of anything except Kṛṣṇa consciousness. Material necessities are supplied by the mercy of the Supreme Lord. We sometimes feel scarcity because of our mismanagement, but the real problem is that people are out of touch with Kṛṣṇa consciousness.

(Sri Caitanya Caritamrta------1:3:97-------translation and purport).

If one accepts Kṛṣṇa as the supreme friend, the attraction of material friendship will be finished for him, and he will not be dismayed by so-called friendship with mundane wranglers. If he is attracted by servitorship to Kṛṣṇa, he will no longer have to serve the material body in the degraded status of material existence, with the false hope of becoming master in the future. Similarly, one who sees the greatness of Kṛṣṇa in neutrality will certainly never again seek the so-called relief of impersonalist or voidist philosophy. If one is not attracted by the transcendental nature of Kṛṣṇa, one is sure to be attracted to material enjoyment, thus to become implicated in the clinging network of virtuous and sinful activities and to continue material existence by transmigrating from one material body to another. Only in Kṛṣṇa consciousness can one achieve the highest perfection of life.

(Sri Caitanya Caritamrta------1:4:35--------purport).

Although the hunter was very sinful, his heart became softened, and he became afraid of his sins by virtue of his association with a great devotee like Nārada. Those who are grossly sinful are not at all afraid of committing sins, but here we can see that because his purification began in the association of a great devotee like Nārada, the hunter became afraid of his sinful activities. The hunter therefore replied: "My dear sir, from my very childhood I have been taught to kill animals in this way. Please tell me how I can get rid of all the offenses and sinful activities which I have accumulated. I am surrendering unto your feet. Please save me from all the reactions of my sinful activities which I have committed in the past, and please direct me to the proper path so that I can be free."

(TEACHINGS OF LORD CAITANYA).

Persons who are a little above such gross materialists believe firmly in life after death and thus try to rise a little above the plane of gross sensory enjoyment of this one life. They try to accumulate something for the next life by acts of virtue, just as a man banks some money for future happiness. But these people do not understand that neither anysinful nor any virtuous act can bring freedom from the bondage of work, as we have explained above. On the contrary, both sinful and virtuous acts will bind the worker up in the wheel of action and reaction.

(MESSAGE OF GODHEAD).