The cliché was “Comes the revolution”, not “Come the revolution”.
Here’s the source for those readers who are too young to be familiar with the phrase:
In the Broadway production of “Ballyhoo of 1932″, a soap-box orator told some bums about the glories of Communism. “Comes the revolution,” he declared, “everyone will live the good life and eat strawberries and cream”. “I don’t like strawberries and cream!” responded one of his listeners. “Comes the revolution,” the orator declared, “You’ll eat strawberries and cream—and like it!”