God is extremely delighted with Job. However, someone was not at all happy with how Job has been acting. This being was a rebellious angel, one who had caused mankind's mortality, the one who is called Satan.
The only reason that your beloved Job is worhipping you is because you keep on blessing him, If you take these away, he will curse you!
Go on then. He is in your hands. Do as you want with him, Only be sure to not take away his life.
Satan wasted no time in ruining Job's life. Satan made men steal his animals and livestocks. Furthermore, all his children were hit by lightning during a banquet and died agonizingly. Job was devastated.
The situation got much worse as Job had been inflicted with a disease that caused boils to grow all over his body which caused him extreme pain and discomfort. It was a horrible experience, which prompted Job's wife to ask him to curse God and die.