You can tell everyone what God has done in your life and what He is doing, but it's only until you begin to live it that it becomes visible for those around you to see. Don't get me wrong, words are good, but they are invisible until they are expressed through action. There is a term used in the music industry when a certain song seems to stick in your mind and make you feel like dancing. Before you know it everyone will be dancing. On the contrary, if you are saying one thing and doing another the only thing that will be expressed is hypocrisy.
Nothing turns people off faster than the deafening tones of hypocrisy.
Once you start to walk the talk, you are probably going to be tempted more than ever to compromise in your faith. Remember, Jesus was tempted in every way possible, yet He was without sin. Jesus walked this earth as a man totally reliant on the Holy Spirit. We have been given the gift of the Holy Spirit. He is our helper, counselor, guide, and teacher.