God created the possibility of evil; people actualized that potentiality. The source of evil is not God's power but mankind's freedom. Even an all-powerful God could not have created a world in which people had genuine freedom and yet there was no potentiality for sin, because our freedom includes the possibility of sin within its own meaning.
Peter KreeftNo age has been more prone to confuse the sin with the sinner, not by hating the sinner along with the sin but by loving the sin along with the sinner. We often use "compassion" as an equivalent for moral relativism.
Peter KreeftMoral stupidity comes in two different forms: relativism and legalism. Relativism sees no principles, only people; legalism sees no people, only principles.
Peter KreeftSocrates: So even our walks are dangerous here. But you seem to have avoided the most dangerous thing of all. Bertha: What's that? Socrates: Philosophy. Bertha: Oh, we have philosophers here. Socrates: Where are they? Bertha: In the philosophy department. Socrates: Philosophy is not department. Bertha: Well, we have philosophers. Socrates: Are they dangerous? Bertha: Of course not. Socrates: Then they are not true philosophers.
Peter Kreeft