Id the question here: Is God the creator of Evil, or is He is source of Evil?
God created everything. Period. Does that invlude the nothings and the voids anf the darkness? Yes it does.
God is the source of Truth, God is the source of Light, and God is the source of Law.
By being the sources of these things, a duality was created: good/evil, right/wrong, light/darkness.
Evil is the opposite of Good. The things above that God made were made from Good, which in turn, defined Evil.
Evil, as a concpoet was created when God laid the Law, but Evil as a power was never of God.
Once established, Satan used that power to rebel against God...
thus, though God's provision of Law, we have both Good, from God, and Evil from Satan, niether of whoich could exist before the Law, but both of which are vital, if there is to be Law.
God did create Evil, but God is not the source of Evil, as it applies to mankind.. Satan is.
God gives us goodness, as one choice, and Stan gives us Evil as a second choice.
The choice itself, is the ultimate end ot a means: mankind desiring to Love God, or not to.
Gdo created us so that we would choose ot Love him.. in orde to choose, we would need an alternative choice: Hate. Love / Hate...Good / Evil.
This was God's plan all along, to create beings that would choose to Love Him.
Before time, he knew whoich ones would, and which ones wouldn't, and it is possible that He could have only created ones that would choose to Love him.. but then there wojld be no need for Law in that case.
Also, He could have chosen to simply destroy those who chos to Hate Him, but then that would not be fair to those who chose to Loe him, for why should the possible consequence of Death only exist for some and not for all?
So, God created things as they are, knowing the outcome:
Some wil live some will die. They will do so based upon thier choices, and I know who will choose what.
Some will live, and some will die.
To this end, is Good and Evil both existant.
And to this end was the Law created to define good and evil, for man, so that man could make his choice.
But, to man's sins, and man's wroing dpoings. it is not God who is to blame, but man himself, for it is man who still chooses to Love or Hate God.