It's the end of the world as we know it

What that made me think of was that religious prophets have a propensity to preach in the end of the world. Whether it comes through visions, dreams, or whatever form that the revelation comes through most prophets foretell the end of the world. Truly this is how the man must have felt. The world as he knew it ended, there was nothing left. He looked at his son and he saw a future that he had no part of. This was the end of his everything.
Prophets also tell of what comes after the end of the world, they tell of a rebirth. A time where things become better than they were before the end. The man may have had trouble believing that life could continue but he believed in his son. He hoped that his son would have a new beginning even if he did not truly believe. The end of the story when he is found by the good people I see as a fulfilling of prophecy in a way. Armageddon came, the earth was completely destroyed and there was nothing left. From the ashes however came hope which I believe is personified in the boy.