When it comes to the lordship of Jesus, we either believe that he has complete authority, or we don't. We either believe that he can save our family, or heal the sick, or renew our church, or bring revival, or transform our nation, or we don't. This is not to say that Jesus will necessarily do all these things. But the question here is, "Do I believe that he has complete authority or not?" That's how big faith begins. Jesus himself said, "All authority on heaven and on earth has been given to me"