Many times, when I read or hear people expressing their disdain for the Christian faith—particularly those who claim to have left it—I wonder if they have ever really known the faith. To me, the Christian faith is Jesus. Not what Jesus has done for me. Not the doctrines about Jesus. Not the things I do for Jesus. The Christian faith is Jesus. In Him, in relationship with Him, I live. He is my life, my all.
And I doubt that those who have walked away from the faith have understood that. I am confident that those who deny the faith from the outside have never heard or understood that gospel. Then I wonder—would they have denied the real gospel?
Of course, some will reject and some may even deny. But they should at least be exposed to the truth! As long as the Christian faith is presented as a set of doctrines or life standards or rituals, people will experience the frustration and despair that Lewis wrote about. As long as it is something I have to do, the success of which depends on me, I am in trouble.
Bottom line: The gospel is the story of the love of God revealed in the Person and work of Jesus. The Christian faith is a walk with a Friend. Christian doctrine is about who our Lord is and what He has done. Christian standards are the natural result of a life centered on Jesus.