Srimad Bhagavatam Canto 06, Chapter 03, Text 26

SB 6.3.26

evam vimrsya sudhiyo bhagavaty anante
 sarvatmana vidadhate khalu bhava-yogam
te me na dandam arhanty atha yady amisam
 syat patakam tad api hanty urugaya-vadah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
Considering all these points, therefore, intelligent men decide to solve all problems by adopting the devotional service of chanting the holy name of the Lord, who is situated in everyone’s heart and who is a mine of all auspicious qualities. Such persons are not within my jurisdiction for punishment. Generally they never commit sinful activities, but even if by mistake or because of bewilderment or illusion they sometimes commit sinful acts, they are protected from sinful reactions because they always chant the Hare Krsna mantra.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
In this regard Srila Visvanatha Cakravarti Thakura quotes the following verse from the prayers of Lord Brahma (Bhag. 10.14.29):
athapi te deva padambuja-dvaya-
 prasada-lesanugrhita eva hi
janati tattvam bhagavan-mahimno
 na canya eko ’pi ciram vicinvan
The purport is that even though one is a very learned scholar of the Vedic sastras, he may be completely unaware of the existence of the Supreme Personality of Godhead and His name, fame, qualities and so forth, whereas one who is not a great scholar can understand the position of the Supreme Personality of Godhead if he somehow or other becomes a pure devotee of the Lord by engaging in devotional service. Therefore this verse spoken by Yamaraja says, evam vimrsya sudhiyo bhagavati: those who engage in the loving service of the Lord become sudhiyah, intelligent, but this is not so of a Vedic scholar who does not understand Krsna’s name, fame and qualities. A pure devotee is one whose intelligence is clear; he is truly thoughtful because he engages in the service of the Lord — not as a matter of show, but with love, with his mind, words and body. Nondevotees may make a show of religion, but it is not very effective because although they ostentatiously attend a temple or church, they are thinking of something else. Such persons are neglecting their religious duty and are punishable by Yamaraja. But a devotee who commits sinful acts, which he may do unwillingly or accidentally because of his former habits, is excused. That is the value of the sankirtana movement.
Srimad Bhagavatam Canto 06, Chapter 03, Text 25
Srimad Bhagavatam Canto 06, Chapter 03, Text 27