Any devotee who has developed genuine love for Krishna can also explain the truth about Krishna because Krishna helps such sincere devotee seated in his heart.
This protection is offered to a devotee even from the very beginning of his devotional service. Kaunteya pratijanihi na me bhaktah pranasyati (Bhagavad Gita 9.31). If one simply begins devotional service, he is immediately protected by the Supreme Personality of Godhead. This is also confirmed in Bhagavad Gita (18.66) : aham tvam sarva papebhyo moksayisyami. Protection begins immediately. The Lord is so kind and merciful that He gives the devotee proper guidance and all protection, and thus the devotee very peacefully makes solid progress in Krishna Consciousness without outward disturbances. A serpent may be very angry and ready to bite, but the furious snake is helpless when faced by a blazing fire in the forest. Although an enemy of a devotee may be very strong, he is compared to an angry serpent before the fire of devotional service.
Krishna takes a special appreciation for His devotees who are engaged in risking for His preaching work and He will give you special care and guidance at all times because you are sincerely trying to serve Him in this way.
When there is suffering given by Krishna, a devotee does not take seriously suffering. A devotee thinks, “It is the favour of Krishna that He has put me into suffering.” They never see suffering as suffering. It is favour of Krishna. That is a devotee’s vision. It is exactly like a son who knows his father well. If the father slaps, the son never protests. He knows that “It is good for me.” Similarly, a devotee is never disturbed when there is suffering given by Krishna.
Although the motive (of a devotee) might be impure, the Lord does not consider the motive; He is concerned with the service. However if a devotee has a particular motive, the Lord directly or indirectly knows it and therefore, He does not leave the devotee’s material desire unfulfilled. These are some of the special favours by the Lord to a devotee.
It is hardly possible to find a single Bhakta (devotee) of Krishna among 100,000 liberated persons.