John Wesley on Exodus 3:11

Who am I? - He thinks himself unworthy of the honour and unable for the work. He thinks he wants courage, and therefore cannot go to Pharaoh: he thinks he wants conduct, and therefore cannot bring forth the children of Israel out of Egypt; they are unarmed, undisciplined, quite dispirited, utterly unable to help themselves, Moses was incomparably the fittest of any man living for this work, eminent for learning, wisdom, experience, valour, faith, holiness, and yet Who am I? The more fit any person is for service, commonly the less opinion he has of himself.