Christians argue about who's in charge of who, who's going to run things, who is the authority and who are the leaders that tell us on behalf of Jesus what to do next.
True faith, saving faith that receives the good news about the Lamb of God who takes away the sin of the world is a faith created in us by the Holy Spirit through the Gospel.
The arrangement was made with Abraham when God claimed for Himself all of his being, and put the seal of His promise upon the most personal member of his anatomy.