Chanting Hare Kṛṣṇa without offenses vanquishes all sinful activities
One cannot be situated in the devotional service of the Lord unless one is free from sinful life. This is confirmed in the Bhagavad-gītā (7.28): yeṣāṁ tv anta-gataṁpāpaṁ janānāṁ puṇya-karmanāmte dvandva-moha-nirmuktābhajante māṁ