Christian denominations have differing views on the mediator between them and God. For example, Catholics teach that Christians must go through their priesthood to have a relationship with God. Others teach that one can only have a relationship with God through their particular denomination, or church. Some have even thought, or taught that a relationship with God was only possible through one particular pastor.
This idea was developed with the group today known as Jehovah’s Witnesses starting in the 1890’s around their Founder, Pastor C. T. Russell. He became known among them as “the faithful and wise servant” (Mt 24:45 KJV), “the one that God was using to give true spiritual food to mankind.”