When we receive God's gift of life by relying on Christ, we find that God comes to act with us as we rely on him in our actions. That explains why Jesus said that the least in the kingdom of the heavens are greater than John the Baptist--not, of course, greater in themselves, but a greater power works along with them. The "greater" is not inherent, a matter of our own substance, but relational.
So, C.S. Lewis writes, our faith is not a matter of our hearing what Christ said long ago and "trying to carry it out." Rather, "The real son of God is at your side. He is beginning to turn you into the same kind of thing as Himself. He is beginning, so to speak, to 'inject' His kind of life and thought, His Zoe [life], into you; beginning to turn the tin solider into a live man. The part of you that does not like it is the part that is still tin."
(Image: slice from book cover)