Scripture Commentary Psalm 115

What is the difference between the god of the heathen and the True God? Is there any wrath towards God's children from Him? how is the god of the imagination of men a god that relies on the men that created him? How is the True God our help and our shield? How do you know someone that believes in the LORD? How is the LORD who is mindful of us the opposite of the god that men preach that men must be mindful of? What does fearful reverence of the LORD mean?