In addition Chany, I reject premise three of your response to the free will defense.
While Mackie's world may be a logically possible world, it does not follow that God can actualize it, for it very well may be that in any world God actualizes wherein there exist free moral agents, at least one of them chooses to do evil.
A portion of Dr. Craig's Defender's Podcast transcript highlights this:
Question: It seems like God would be able to create any world He wants; He could create a world without free will. So He could choose not to create free will. So you need to have the best of all possible worlds.
Answer: I don’t think so. Certainly God could create a world without any free creatures in it at all. He could create a world that has no higher life forms than rabbits, for example. That is certainly within God’s power. But there may be worlds – for example, worlds of free persons that involve as much moral good as this world does, but He doesn’t have the ability to create them – and then, say, in these possible worlds these persons would never sin, and there would be no evil and no suffering. God may not have the ability to create those worlds because if He tried to create those people in those circumstances, they would not cooperate, and they wouldn’t do the right thing. So there is any number of possible worlds that are logically possible for God to create, but they are not actually feasible for Him to create because the people in them would not cooperate; they would freely go wrong.
Followup: He can choose to create any world He wants, but what you are saying is He can’t choose one that is logically inconsistent, correct?
3
Answer: No, I am not saying that. Let’s imagine a world without sin, in which there are lots of free people, and in every moral situation they find themselves in they always make the right choice. That is a logically possible world. There is nothing illogical or self-contradictory about a world like that. But what I am saying is that that kind of a world may not be feasible for God to create because if He created those people, in those circumstances, they might freely go wrong. And so that world wouldn’t come about. It is not within God’s control to make them always do the right thing. If He did that, that removes their freedom. This leads to this rather paradoxical conclusion that I think is quite correct that there are worlds that are, in and of themselves, logically possible – there is no inconsistency in a world in which people always freely do the right thing – , but those things might not be feasible for God to create because, in order to do that, He would have to override their free will, and in these worlds we are imagining people do have free will.
Question: How do you reconcile the doctrine of heaven? Is it possible for people in heaven to sin? Given an infinite future, wouldn’t it seem possible that every free agent in heaven would sin?
Answer: I think there are a couple of ways to deal with this. This comes up in my debate with the philosopher Ray Bradley on the question of hell.
4What I point out in that debate is that heaven is not itself a possible world. Heaven is the result of a state that leads up to heaven where people have freely chosen to obey and worship God, and so they are rewarded and go to heaven. It is not as though God could just sort of scale away or take off this pre-mortem state and just create heaven by itself because heaven is the state which is the result of all these prior choices. If He did try to create such an isolated world, then you have got a new world on your hands, and it might very well be the case that then the people would go wrong and do the wrong thing. The deeper question posed by your question is, in heaven will people have the freedom to sin or not? I think there are a couple of ways that one might respond to this. There isn’t any sort of orthodox doctrine on this. I think a couple of sorts of responses are possible. One would be that people in heaven do have the freedom to sin but God has chosen the elect to be only those who, if they were in heaven, would always freely choose to do the right thing. So even though they have the ability to sin, they just won’t exercise it. The other thing you could say – and this I find very plausible – is that the freedom to sin is effectively removed in heaven by coming to see Christ in all of His beauty and glory and purity. I think that the human will to evil will simply be overcome by the powerful and immediate presence of Christ. So, just as iron filings stick to a gigantic magnet, there would not be the ability to fall away because Christ, being seen in all of His magnificence, would be so attractive and irresistible that the freedom to sin would be removed. But again, that is only the result of a pre-mortem condition in which people are created at a sort of “arm’s length” from God and all His glory and thus have the freedom to respond or refuse to believe in Him during this vale of decision-making until we get to heaven.
Read more:
http://www.reasonablefaith.org/defenders-2-podcast/transcript/s4-32#ixzz4ICy7RdlX