p. 122 answers

1. Everything but god keeps them alive. He is saying humans are nothing special./If God drops a person, he/she would plummet into hell and nothing could stop them like a rock falling through a spider's web. If God is upset with a person then he will destroy the person, and all that would be left is dust like when the wheat goes through a threshing machine and all that is left on the floor is the chaff./
2. The Earth, Sun, animals, air, wind, and water don't serve the sinner./A storm with thunder and black clouds shows God's anger. Anger is represented by darkness and being out of control, which is like a storm.
3. Change your heart and praise God and nothing else./The bow wants to release the arrow at your heart, and it would make the bow happy to do that.The reason it is scary is that you have an arrow pointed at your heart.
4. There is no reason someone is not in Hell ever and that is where you are going. God holds you up over Hell./No one wants to be in Hell and be worried all the time.
5. Short term: you try to be better than you were, Long term: You get used to it and either become lax or keep believing.

5B.
Shakespeare's take on God is that one of his attribute is that he is merciful. That this mercy is dropped from heaven gently and absorbed by the kings, and they rule justly. Edward's sermon paints God as merciless as he can drop the hammer at any time although he is merciful because God chooses not to.