Robert A. Heinlein
Dan Davis, an electronics engineer, had finally made the invention of a lifetime: a household robot that could do almost anything. Wild success was within reach—and Dan's life was ruined. In a plot to steal his business, his greedy partner and greedier fiancée tricked him into taking the "long sleep"—suspended animation for thirty years.
But when he awoke in the far different world of AD 2000, he made an amazing discovery.
...After firewalking in Polynesia, fundamentalist minister Alexander Hergensheimer never saw the world the same. Now called Alec Graham, he is in the middle of an affair with his stewardess, Margrethe, when natural disasters begin plaguing them. First, there is an impossible iceberg that wrecks the ship in the tropics; then, after being rescued by a Royal Mexican plane, they are hit by a double earthquake. To Alex, the signs are clear: Armageddon
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