Somebody asked me recently why God would create man knowing we'd sin, introduce evil into the world, and God would have to send Jesus to die for all that. At the time, I was trying to explain the difference between essential and non-essential Christian doctrines and how Christians disagree with each other over non-essentials but remain Christians. So rather than answer his question in light of my own theology, I explained to him how different people would respond to his question in light of their own theology. Here's what I said to him.
The way a person answers this question will depend on what theology they subscribe to. Rather than push my own view, I'll explain the way four different kinds of Christians might respond.
- Open theism
- Arminianism
- Molinism
- Calvinism
Open Theism
Open theism is the view that for God, the future is an open question. Some people accuse open theists of denying God's omniscience because God doesn't know all the future free will choices of his creatures. Open theists themselves will deny this accusation on the basis that God can only know what is true, and there are no truths to contingent future free will choices. So, for example, whether you will choose Sprite or Coke tomorrow isn't something God knows today because there's no truth to the matter. As long as you have free will, it could go one way or the other.
It's probably obvious to you by now how an open theists would answer your question. God didn't know what would happen when he created Adam and Eve because they had free will.
Arminianism
Arminians subscribe to simple divine fore-knowledge and libertarian free will. This means that our actions are not determined by antecedent conditions. They are spontaneous events. And God knows what we will do.
Arminians justify the creation of mankind, in spite of his knowledge that they would sin, on the basis of weighing the pros and cons. The good that comes from free will outweighs the bad. Some of the goods that comes from free will include goodness itself (since in their view, morality isn't even possible without free will), love (both love for each other and love for the creator), and rationality. Under this view, life would be meaningless without free will because we'd just be a bunch of pre-programmed robots.
Molinism
This is the view Craig subscribes to. According to Molinism, people have libertarian free will, but God has what's called middle knowledge. This is knowledge of counterfactuals concerning free will decisions. For example, "If Jim meets Bob on Tuesday, Jim will offer to buy him lunch." So under this view, God knows what each person would do under every circumstance.
Prior to creating the world, God surveyed all the possible worlds with all of their contingencies, and he actualized the world that contains the greatest number of saved people, or the greatest ratio of saved to lost. So whatever evils there are in the world are here because the world where the most people get saved happens to also have a lot of evil in it.
Under Molinism, God can't just actualize any possible world he wants. He's limited by the counter-factuals of human freedom. Consider these two worlds:
- World 1: Jim meets Bob and offers to buy him lunch.
- World 2: Jim meets Bob and does not offer to buy him lunch.
Both of these worlds are possible. If Jim has libertarian freedom, he can choose either way. However, prior to creating anything, there is a counter-factual that is true about any world containing Jim. It goes like this:
- If Jim meets Bob, he will offer to buy him lunch.
This counter-factual tells God what Jim would do if he met Bob. Now, if that counter-factual is true, then God obviously couldn't actualize World 2 because that would lead to a contradiction. Any world in which Jim meets Bob will be a world in which Jim offers him lunch. It's up to Bob what choice he makes, but God has some limited control over what happens because God can actualize states of fairs, and he can do so according to his knowledge of all the counterfactuals of human freedom.
So it may just be that given all the counter-factuals God knows about all the possible people that could come into existence, there just is no world that he could actualize that doesn't contain some evil. And this may be the optimal one that gets the greatest number of people saved.
Calvinism
Under Calvinism, God is absolutely sovereign over everything that happens. That means that for everything that happens, God intended it to happen because God has a purpose it. Most Calvinists are compatibilists. A compatibilist is somebody who thinks that free will and determinism are compatible. They reconcile free will and determinism by defining free will differently than libertarians. Whereas under libertarianism, there are no conditions prior to and up to the moment of choice that are sufficient to determine what that choice will be, under compatibilism, our choices are determined by our antecedent desires, motives, inclinations, biases, preferences, intentions, etc. So under compatibilism, God can have complete control over every choice that every person makes since he has some control over the antecedent conditions that determine those choices.
Not all Calvinists are compatibilists. Some Calvinists subscribe to libertarian freedom under some circumstances and compatibilism is limited to the choice of whether to accept or reject Christ. But in either view, God is sovereign over everything that happens. God has a detailed plan for the whole history of the world that he meticulously brings about, and that includes the fall of Adam and Eve.
Calvinists deal with your question in a number of ways. One way is simply to say that God has an overriding morally good reason for allowing history to unfold the way it did. He has a purpose in everything, though we may not know what that purpose is. But it's a good and holy purpose.
Some Calvinists take it a step further and identify what his purpose is in disposing the world in such a way that evil was inevitable. It's because God's ultimate motive in creating the world was to glorify himself, and God's glory consists of all his holy attributes. God didn't just want to have certain attributes, and leave them dormant. He wanted to express them, exercise them, display them, etc. Since God is the greatest possible being, all of his divine attributes are great, and since his divine attributes are great, then a world in which they are all expressed is better than a world in which many of them lie dormant.
Some of God's attributes can only be expressed in a world containing evil. For example, God is merciful and forgiving, but he is also just, and he hates sin. God can't forgiven unless there's something to forgive, and that entails that there must be sin. Likewise, God can't express his wrath toward sin without the existence of sin.
So under Calvinism, God is glorified both in the judgment against sinners and in the salvation of sinners. That means the greatest possible good can only be fully expressed in a world containing evil.
Conclusion
I think the key to explaining why God created man, knowing he would introduce evil into the world, is to know what God's motive in creation was in the first place. But a person doesn't need to know what God's motive was in order to maintain a reasonable belief in God in spite of the difficulty. Suppose we don't know why God created a world with evil. Our ignorance doesn't tell us anything about whether God actually has a reason or not. If an almighty God who knows everything has some reason for doing things the way he did, there's no reason to expect that creatures as limited as ourselves would necessarily know, or be able to figure out, what that reason is without him revealing it to us. As long as it's possible that God has a morally sufficient reason for creating a world containing evil, the existence of evil shouldn't pose a problem to somebody who is disposed to believe in God. Before one could make a sound argument against God from the problem of evil, they would have to rule out that possibility.
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