The Lord is saying, "Be not afraid of the people, but be fearful of me" because he is the one God and the only God that you should serve. He is the only one that can create whatever he wants or whatever is available for us. Have you heard the phrase, "God said, Let there be light! And light has been brought." Now no more very dark skies, we have stars and lamps and fire now ^^
Hope this is understandable.
