We should be shaken by the tumult in world, because God is doing the shaking. He is very loudly shaking away the evil, because it is not his will to give peace to a rebellious world. Just as he shook and pulverized apostate Judaism to make way for the true Jewish church (Christianity), so he is shaking and pulverizing the apostate gentiles to make way for his comprehensive kingdom. We should rejoice in his earth-shaking victory.