I would suggest reading a book by C.S. Lewis called Mere Christianity. This might be a good place to start with some of your questions. I know he was from Ireland but we should not hold that against him. Ha, ha
I am truly sorry you have encountered the weakest ones that show up on Sunday. Yes, they also preach in many of the churches across the world; but there are those of us that are there out of a true desire for our fellow brothers and the world.
It is nice that you are quoting from Spurgeon, he is a very good Calvinist. Brotherly rib included.
Now for the fun questions that we all get to wrestle with.
Who is God?
If God is good, how can he let bad things happen?
How do I know what good is?
How do I know what is good for me?
What is my concept of good?
Let's chase the rabbit down the hole and see where we end up.
Soli Deo Gloria,