What happens when we remove faith from our sense of "calling"? Insecurities, doubts, and self-imposed limitations. This is exactly what you see in the calling of Moses who went through a gamut of self-doubt when he was being called to lead God's chosen people out of bondage in Egypt. In each instance, we can see God repeating over and over again that it is not through Moses' capabilities or limitations that greatness will be achieved, but through the providence and power of God.