by jimwalton » Wed Jul 23, 2014 4:18 pm
Evil is not something that has an existence all its own. Instead, it's a corruption of what already exists. It's the corruption of good. Rust, for example, can only exist as long as metal exists, so also tooth decay because of the tooth, rot on a tree, or decay on a carcass. That's not to say evil isn't real. While it doesn't have an existence all its own, it involves real corruption of an actual entity.
Where did it come from? First of all, God is eternal, so by definition, anything that he created is not eternal, and therefore not God. Therefore anything that is created has the potential to stray from perfection, because it's not God. A crystal glass in my hand may be perfect, but that doesn't mean it can't be shattered.
Secondly (and consequent to what I just said), if human beings were created with a free will, but their will was bound so that it could only choose the good, then it wouldn't be free will. People would be automatons, forced to choose only what was right and good. So a world containing truly free creatures who are truly free to choose any alternative (whether good or evil) is more valuable than a world containing mere robots who always do what is right because they are unable to choose otherwise. God can create free creatures, but then he can't determine them to do only what is right. He must create creatures who are good (because he can only create what is good) but who are capable of making their own choices, and therefore capable of moral evil. You see? He can't create the possibility of moral evil and at the same time prohibit its possibility. As it turns out, God, the perfect autonomy of self-governance, created a perfect creation, but one capable of choosing the wrong, for love, to be love, has to be freely chosen and not forced. As it turned out, his creatures exercised their freedom to do what is wrong. The fact that moral and free creatures sometimes err in no ways speaks against God's power, love, or goodness. The only way to eliminate the possibility of moral evil was to remove the possibility of moral good, which is not an option. The wisest choice was to create people good (though with the necessary option to choose evil), tell them what was the good choice, what would happen if they made the evil choice, and urge them to choose the good, which is exactly what happened. And when they chose evil, he instituted a plan to reconcile them to himself, and sacrificed himself, motivated by love, to redeem them.