“Simply chanting the Hare Krsna maha-mantra without offenses vanquishes all sinful activities. Thus pure devotional service, which is the cause of love of Godhead, becomes manifest.” Caitanya Caritamrta Adi 8.26

“I am so pleased to note that you are chanting nicely and that Krishna is encouraging you in so many ways. This is the actual position that if we are sincerely chanting our rounds, following the prescribed regulative principles, and AVOIDING THE TEN OFFENSES, then very quickly Krishna sees our efforts and He gives all encouragement to such sincere soul. Then with this taste of Krishna Consciousness, we become more and more attracted, so more and more Krishna gives encouragement, and then more and more we increase in our desire to serve Krishna in pure Krishna Consciousness.” Srila Prabhupada letter to Krsna devi, New Vrindavan, June 15th 1969