Consider this post a sidebar to the ongoing series on Molinism. It draws on some recent comments by William Lane Craig, arguably the leading evangelical defender of Molinism, in response to a reader’s question (bold added):
First, I don’t claim that “universal salvation is impossible because of free will.” The point here is subtle and easily misunderstood. I think that there certainly are logically possible worlds in which everyone freely places his faith in Christ and so is saved. What I’ve said is that, for all we know, such worlds may not be feasible for God to actualize (or, if some are, they may have overriding deficiencies that make them less preferable). The point here is that God’s being omnipotent does not entail that He can actualize just any logically possible world. For the persons in those worlds, were God to try to actualize them, might freely choose to reject God. We can grasp this point by realizing that which world is actual isn’t up to God alone; free creatures are co-actualizers of the world along with God by means of their free choices, which God does not determine. So it may not be feasible for God to actualize a world of free, universal salvation (without overriding deficiencies).
Craig is exactly right that on the Molinist view, “which [possible] world is actual isn’t up to God alone.” God determines some contingent truths, while his creatures determine other contingent truths by their (libertarian) free choices. God only ‘weakly’ actualizes this world. He ‘strongly’ actualizes many aspects of the world, e.g., causally determining the circumstances in which free creatures will make their choices, but God doesn’t causally determine those choices. Rather, by way of his middle knowledge, God knows infallibly what free choices his creatures would make in those circumstances, and thus by ‘strongly’ actualizing those circumstances God ‘weakly’ actualizes the world in its entirety. Even so, as Craig puts it, we are “co-actualizers” of the world, because the actuality of this world depends both on God’s free choices and on ours.
This model of divine providence has proven attractive to many Christian thinkers, partly because of its prospects for theodicy. If the actualities of this world aren’t entirely “up to God” then perhaps God can’t be held morally responsible for the fact that some aspects of this world are less than ideal (e.g., not all creatures are saved).
However, I think the way Craig puts matters in the quotation above conceals some of the oddities of the Molinist’s position. Craig makes it sound as though which possible world is actualized is “up to” both God and us, based on the actual free choices that we all make. But this is misleading for two closely related reasons.