A Christian not yielded to the Spirit does not manifest the Christ-life. The Spirit of God has to permeate a life if that life is to radiate Him. We cannot do anything apart from being filled with the Spirit.
I have a glove. If I say to the glove, “Play the piano”, what does the glove do? Nothing. The glove cannot play the piano. But if I put my hand in the glove and play the piano, what happens? Music! If I put my hand in a glove, and glove moves. The glove does not get pious and say, “Oh hand, show me the way to go.” It does not say anything; it just goes. Spirit-filled people do not stumble and mumble around trying to find out what God wants. They just go!
– John MacArthur