“God answered, ‘I will be with you, and when you bring the people out of Egypt, you will worship me on this mountain. That will be the proof that I have sent you’”. 
Ex 3:12 GNB 

The rescue of the people of Israel out of their bondage in Egypt is one of the great events of the Bible. It has been seen as a model for many people needing to be liberated from various forms of oppression. Thereafter God was always known as the God who saves. 
Hiding away in the desert as a refugee from the law, Moses would have been a “marked man”. It was hardly likely that God would have any work for him to do – let alone lead. But in his grace God called Moses to be his servant. “Notice the Lord’s graciousness here in not trying to deny Moses’ inadequacy. How differently we react to each other. Somebody comes to us and says, ‘I’m not really up to it’, and we immediately and thoughtlessly reply, ‘Of course you are!’ That is not the way the Lord dealt with Moses – or the way he deals with us. He does not sweep the difficulties we feel aside. Moses said, ‘Lord, I’m not adequate’, and the Lord said, ‘No, but I am!’ He accepted Moses’ self-estimate and graciously promised his presence as adequate for the inadequate man. He neither said to him, ‘Of course you’re adequate’, denying Moses’ feelings, nor did he say to him, ‘It doesn’t matter’. He accepted Moses’ sense of inadequacy as one of the facts of the situation, but then countered it by the adequacy of his own presence” (A. Motyer, The Message of Exodus, p65). 
Claim God’s power to compensate for your frailty. 

Lord, let your power be made perfect in my weakness.