God and Evil

After weeks of reading and meditating on the book of Job, I got convinced that God is really sovereign. His plans cannot be thwarted (c.42.v.2) and even what Job experienced was actually from Him (c.42.11). Matthew Henry, in his commentary on Romans 9, said that:
"And herein God is to be considered, not as a rector and governor, distributing rewards and punishments according to his revealed laws and covenants, but as an owner and benefactor, giving to the children of men such grace and favour as he has determined in and by his secret and eternal will and counsel: both the favour of visible".
It is very clear that God does not portray a leader-like stature but rather a big-time owner whose ultimate end is to glorify Himself by enjoying Himself forever (Desiring God, John Piper). And that enjoyment is fulfilled in the presence of evil, where His Name triumphs on, thus gets the glory forevermore. Therefore, I have to admit that my stand on His sovereignty hangs on the belief that evil was actually authored by Him.