 By way of a reply to this argument and in defense of his own free–will approach to hell—which, by the way, in no way excludes the possibility that some inhabitants of hell may eventually escape from it—Jerry Walls concedes that “the choice of evil is impossible for anyone who has a fully formed awareness that God is the source of happiness and sin the cause of misery” (Walls 1992, 133). But Walls also contends that, even if those in hell have rejected a caricature of God rather than the true God, it remains possible that some of them will finally make a decisive choice of evil and will thus remain in hell forever. He then makes a three-fold claim: first, that the damned have in some sense deluded themselves, second, that they have the power to cling to their delusions forever, and third, that God cannot forcibly remove their self-imposed deceptions without interfering with their freedom in relation to God (Walls 1992, Ch. 5).