And for God to simply intervene to rectify the problem would have required that He violate the foundational “laws”, which He established to give order to His creation. These fundamental principles are defined by the intrinsic character of God; are part of Him, and proceed from Him as the matrix through which our reality is woven and expressed. To have violated them so directly, by pushing some sort of Divine “reset button” would:
1: Cause Him to be seen as inconsistent and capricious. But this would undermine the foundation of His being trustworthy. Any faith in Him would therefore be unfounded and uncertain. No one could ever know what He might do or when He might do it. Any worship of such a god would be based in fear, and the whole foundation of true freedom constrained by pure Love would collapse.
2: Draw a valid accusation from Lucifer that God is un-just and un-truthful (that He had changed the rules after the game began, as it were), which would strike to the heart of the whole basis of God’s authority and right to be God; the same authority against which Lucifer originally rebelled, and by which Almighty God originally judged Lucifer’s rebellion, and banished the rebels from His presence. This would undermine the deepest foundations of God’s claim to absolute sovereignty over all created realms, and would make mockery of the ideas of “just” and “justice”.
3: “It would, no doubt, have been possible for God to remove, by miracle, the results of the first sin ever committed by a human being; but this would not have been much good unless He was prepared to remove the results of the second sin, and of the third, and so on....forever. If miracles ceased, then sooner or later we might have reached our present lamentable situation: If they did not, then a world, thus continually underpropped and corrected by Divine interference, would have been a world in which nothing important ever depended on human choice, and in which choice itself would soon cease because of the certainty that one (or more) of the apparent alternatives before you would lead to no results, and was therefore not really an alternative at all.” C.S.Lewis The Problem of Pain pg.59ff.