Exodus 3:11-12

11But Moses said to God, ‘I am not an important person. I cannot go to Pharaoh. I cannot lead the Israelites out of Egypt!’

12God said to Moses, ‘Be sure of this: I will be with you. After you have led the people out of Egypt you will all worship me here, on this mountain. That will show you that I myself have sent you to do this.’