I love reading about the call on Moses' life. Exodus 3:11 is his immediate response to God's order to lead the Israelites out of Egypt. Moses says "Who am I to appear before Pharaoh? Who am I to lead the people of Israel out of Egypt?" Moses was giving an expression here of inadequacy for such a serious mission. He was just a mere shepherd in Midian what could he do? But God's calling on our life has nothing to do with us.