It is not easy to give up blaspheming devotees through determination only, thinking that just determination can work is illusion, its trap of maya. You fail, You hide and live in shame because Maya is more powerful than your determination.
Impurities in heart make it so complexed that simple spiritual truths do not appeal to the person.
Beware of anarthas! They are there to distract us from our unified purpose of serving God and thus bringing disunity among us.
A devotee is one who has recovered his intelligence and sanity. Thus he avoids sin, just as an intelligent child or sane person avoids touching fire.