Our God is a God who is in total control of all that happens to the whole world and to each of us individually. God can allow or prevent bad things from happening. Of course, most of us desire that God would prevent bad things from happening. When we are seated next to the toilet on an airplane, we pretty much assume that God could care less whether we are seated next to the toilet or are seated in first class. Yet God controls every single action that occurs in the world, or He would not be God.
When we are seated next to the toilet of life, we discover, as Job did, that God allowed this to happen for all things to work together for good for those who love Him and are called according to His purpose. God's plan for us, who trust in Him, are to prosper us and not to harm us but to give us hope and a future.
The purpose of this book is to show that no matter how bad the evil and sin that confront us, God is in total control, and His words of promise to us will be fulfilled. On this earth, you may lose all that you have: family; friends, wealth, health, possessions, dignity, and told to curse God and die, as Job was. Through God's grace and mercy, you can endure as Job endured.
Do not think that Job endured only because God knew him as a "blessed man who lives righteously." You and I are most certainly not of the character of Job, but God has seated us next to the same toilet of life where Job was seated. Because God is always nearby during our trials (He told Job that), we will discover God's specific plan for us when He does seat us next to the toilet, whether it be on the plane or on the earth.