“In the modern era, the idea of the Last Judgement has faded into the background: Christian faith has been individualized and primarily oriented towards the salvation of the believer’s own soul, while reflection on world history is largely dominated by the idea of progress.
The fundamental content of awaiting a final Judgement, however, has not disappeared: it has simply taken on a totally different form. The atheism of the nineteenth and twentieth centuries is—in its origins and aims—a type of moralism: a protest against the injustices of the world and of world history. A world marked by so much injustice, innocent suffering, and cynicism of power cannot be the work of a good God. A God with responsibility for such a world would not be a just God, much less a good God. It is for the sake of morality that this God has to be contested. Since there is no God to create justice, it seems man himself is now called to establish justice. If in the face of this world’s suffering, protest against God is understandable, the claim that humanity can and must do what no God actually does or is able to do is both presumptuous and intrinsically false.
It is no accident that this idea has led to the greatest forms of cruelty and violations of justice; rather, it is grounded in the intrinsic falsity of the claim. A world which has to create its own justice is a world without hope. No one and nothing can answer for centuries of suffering. No one and nothing can guarantee that the cynicism of power—whatever beguiling ideological mask it adopts—will cease to dominate the world. ”
“God has given himself an “image”: in Christ who was made man. In him who was crucified, the denial of false images of God is taken to an extreme. God now reveals his true face in the figure of the sufferer who shares man’s God-forsaken condition by taking it upon himself. This innocent sufferer has attained the certitude of hope: there is a God, and God can create justice in a way that we cannot conceive, yet we can begin to grasp it through faith. Yes, there is a resurrection of the flesh. There is justice. There is an “undoing” of past suffering, a reparation that sets things aright. For this reason, faith in the Last Judgement is first and foremost hope—the need for which was made abundantly clear in the upheavals of recent centuries. I am convinced that the question of justice constitutes the essential argument, or in any case the strongest argument, in favour of faith in eternal life. The purely individual need for a fulfilment that is denied to us in this life, for an everlasting love that we await, is certainly an important motive for believing that man was made for eternity; but only in connection with the impossibility that the injustice of history should be the final word does the necessity for Christ’s return and for new life become fully convincing. ”
Pope Benedict XVI in Saved in Hope (Spe Salvi)[all emphasis mine]
In this passage Pope Benedict contemplates the necessity of the Last Judgment. I’m fascinated by his argument that our need for justice is the strongest argument in favor of eternal life.