"If a thing is free to be good it is also free to be bad. And free will is what has made evil possible. Why then did God give them free will? Because free will, though it makes evil possible, is also the only thing that makes possible any love or goodness or joy worth having." C.S. Lewis The problem, Lewis then continues is that because a free 'self' exists it has the potential to put 'itself' first - "wanting to be the centre - wanting to be God in fact" . And this breaks the world - "the machine conks" . What does God do about this? He enters our world, becomes one of us while also remaining God - forgiving our sins we committed in our 'free will'. So, our salvation focusses on the identity of this God-man Jesus who claims to forgive sins and to be God. Lewis says: "You must make your choice. Either this man was, and is the Son of God: or else a madman or something worse. You can shut him up for a fool, you ...
No longer will there be anything accursed, but the throne of God and of the Lamb will be in it, and his servants will worship him. They will see his face, and his name will be on their foreheads. And night will be no more. They will need no light of lamp or sun, for the Lord God will be their light, and they will reign forever and ever. Revelation 22:3-5