" Yet if God is absolutely solitary in his supremacy, then surely evil must originate in God himself. Above and before all things, he is the source of all things, both good and evil. Clearly, it is not good for God to be alone. The triune God, however, is the sort of God who will make room for another to have real existence. The Father, who delights to have a Son, chooses to create many children who will have real lives of their own, to share the love and freedom he has always enjoyed. The creatures of the triune God are not mere extensions of him; he gives them life and personal being. Allowing them that, though, means allowing them to turn away from himself—and that is the origin of evil. By graciously giving his creatures the room to exist, the triune God allows them the freedom to turn away without himself being the author of evil. "
― Michael Reeves , Delighting in the Trinity: An Introduction to the Christian Faith