He sets up the possible reasons with a very good explanation of the structure of the argument. His explanation allows him to balance the existence of suffering with “greater goods”.
Most Christians can name some of the ones that he talks about: free will, character formation, etc.
But what about this quote from a section entitled “Worldly people turning to seek God is good”:
Seeking fellowship with God is a great good (especially in the context of eternity). This is relevant because, with less suffering, fewer would seek God. Indeed,
• “Religiosity declines as worldly prosperity of individuals rises.”[2005 WIN-Gallup International poll]1
• Studies confirm that Christianity grows most rapidly during hardships.2
• It is intuitively clear that suffering would lead us to turn to God.3
• Eleonore Stump (Philosophy professor at Saint Louis): “Natural evil—the pain of disease, the intermittent and unpredictable destruction of natural disasters, the decay of old age, the imminence of death—takes away a person’s satisfaction with himself. It tends to humble him, show him his frailty, make him reﬂect on the transience of temporal goods, and turn his affections towards other-worldly things, away from the things of this world.” [“The Problem of Evil” Faith and Philosophy, 2 (1985): 409.]
A bit later, it says this:
This is not to say God causes suffering, or even that that God permits suffering to bring this about. It only says the world is better to at least some degree for God’s not preventing it for a time, and God’s knowing that could factor into overriding his reasons to prevent suffering.
• Peter van Inwagen: “If God did what is proposed, we should all be satisfied with our existence–or at least a lot closer to being satisfied than most of us are now. And if we are satisfied with our existence, why should we even consider turning to God and asking for His help? An essential and important component of God’s plan of Atonement—this constitutes an addition to our theodicy—is to make us dissatisfied with our state of separation from Him; and not by miraculously altering our values or by subjecting us to illusion or by causing us suffering that has no natural connection with our separation, but simply by allowing us to ‘live with’ the natural consequences of this separation, and by making it as difficult as possible for us to delude ourselves about the kind of world we live in: a hideous world, much of whose hideousness is quite plainly traceable to the inability of human beings to govern themselves to or order their own lives. Let us expand our theodicy: An essential part of God’s plan of Atonement for separated humanity is for human beings to perceive that a natural consequence of human beings’ attempting to order their own lives is a hideous world—a world that is hideous not only by His standards, but by the very standards they themselves accept.” [“The Magnitude, Duration, and Distribution of Evil: A Theodicy” Philosophical Topics Vol XVI, No. 2 (1988): 174.]
• Paul Moser (Philosophy professor at Loyola University Chicago): “We can make some sense, in Paul’s wake, of why a perfectly loving God would allow certain kinds of pain and suffering. This God, as perfectly loving, would be after something more valuable than human sensory pleasure and the satisfaction of worldly human wants. God would hope that people be liberated from deadly idols in virtue of trusting God as the authoritative Lord who provides genuine human security and contentment, come what may in this world. This divine hope could thus make good use of allowing pain and suffering among us rather than protecting us from all pain and suffering. This would be part of God’s redemptive judgment of human idols, by bringing them to noticeable futility, for the sake of reconciliation of humans to God in volitional fellowship with God. It would be judgment intended, at least characteristically, to correct humans from their reliance on futile idols and to restore them to their creator and sustainer in volitional fellowship.” [The Elusive God (Cambridge, 2008), 42.]
And even mentioned in Scripture itself:
• Psalm 119:71 — It is good for me that I was afflicted, That I may learn Your statutes.
• Philippians 4:12-14 — I know how to get along with humble means, and I also know how to live in prosperity; in any and every circumstance I have learned the secret of being filled and going hungry, both of having abundance and suffering need. I can do all things through Him who strengthens me. Nevertheless, you have done well to share with me in my affliction.
If you want to check out some of the other reasons, then click through and read the article here. I think it’s worth it to read something if I learn something new, and I found some new competing goods to God’s permission of suffering in the article. I like the references to academic work and the Bible, too.