What we say we believe matters little. We can say a lot without anything being demonstrated in our lives. Our actions actually say more about what we believe than our words. Our beliefs always come out in our actions. Science has demonstrated that we cannot even be hypnotised to act differently then we belief.
James states ” Removing action from faith is like removing breath from a body. All you have left is a corpse.” What do your actions say about what you believe? Peter walked on water because he believed Jesus was who He said He was. When we truly believe it will always drive us to action.