Calvinism teaches that God not only knows all things evil but brings them all to pass.
Where did evil come from before God created the angels and man? Is evil eternal?
I don't believe "evil" is eternal. I believe God knew what evil was eternally.
I also have come to see that Him knowing what 'evil' was eternally has nothing to do with Him being responsible for evil..
Evil was born when the first sin was created/evil came into existance in the realm of God when lucifer fell. It was the thought and action of
lucifer that evil was born.
I believe that God allowed
His creation freewill, to choose. It was the wrong
choice by lucifer that evil was born.
I believe that
if God did not allow freewill to choose, that He would be 'an evil god'....because, the evil we see today, which had it's beginning with lucifer, through freewill, would be God's fault.
There is no denying evil exists.
God did NOT create it. Lucifer did...but, God did not force him too.
He simply allowed Lucifer to have freewill, and without freewill, it would be God that is the Author of evil, and that is not the God I know and serve.
It seems to me that many are ok with thinking that God created evil. When you understand that
'evil is not created' until it is acted upon, you come to realise it could only be due to freewill..
..but, many wrongly interpret it...and, make God the Author of evil...even by claiming there was no freewill, they make God the worker of iniquity.
Sad state of affairs, if you ask me. I do not know clearly what calvinism upholds on the matter though.
I hope that explains it how I view it.