Hare Kṛṣṇa mantra has got the power to neutralize the resultant action of your all sinful activities. That's a fact. But don't accumulate again sinful activities. Then you are safe. If you take it as an instrument: "Now let me commit sinful activities and chant Hare Kṛṣṇa," then that is very dangerous. You will never be excused. Just like sometimes the Christians do. They go to the church, make some atonement, and again does the same thing next week, and again goes to the church, again atonement. This is not good.
If you make atonement for your sinful activities by some process—just like we are prescribing this process, chant Hare Kṛṣṇa—surely your sinful reaction is nullified. But don't commit it again. That is Caitanya Mahāprabhu. He delivered Jagāi-Mādhāi. They were very sinful. Sinful means they were born in a respectable brāhmaṇa family, but by bad association they became drunkard, woman-hunter, cheater and plunderer, like that. That is sinful. So Caitanya Mahāprabhu delivered them. Then how delivered them? Caitanya Mahāprabhu made them promise that "You will not do any more all these things." They said, "Yes, we promise. We shall not do." "Then you are delivered." Similarly, by chanting Hare Kṛṣṇa mantra, all the sinful activities are excused, but you don't commit it again. Therefore we are prescribing . . . along with chanting of Hare Kṛṣṇa mantra, we are asking our disciples, "No illicit sex, no meat-eating, no intoxication, no gambling." If you save yourself from these four pillars of sinful activities and chant Hare Kṛṣṇa mantra—not very much, only sixteen rounds minimum—then you are saved from the hellish condition of life for which Parīkṣit Mahārāja was so disturbed and he was asking, "How to save these people from this hellish condition of life?"