Mahanidhi Madan Gopal Das
“The accumulation of sins from nāma-aparādha is even more dreadful than the result of committing the five mahā-pāpa millions of times. Thus one can easily estimate the dire results of nāma-aparādha. Nevertheless, there are some good results.
“The holy name will give whatever result the nāma-āparādhī desires while he is chanting the names, but it will not award kṛṣṇa-prema. At the same time, the offender has to suffer the result of his offenses against the holy name. One who commits offenses to the holy name, and one who takes the name with a wicked mentality will get the following results: In the beginning, the nāmāparādhī chants the name with a wicked mentality, but after sometime he occasionally chants the name free from wickedness.
“This chanting without a crooked mentality causes him to accumulate sukṛti. Slowly, slowly, as that sukṛti increases, its influence enables him to get the association of saintly people who are chanting suddha-nama. The influence of saints induces the nāma-āparādhī to chant the holy names constantly, which eventually frees him from nāma-aparādhas.” (Jaiva Dharma ch. 25)
An excerpt from the book Art of Chanting.