The power of God

I have been really thinking about the power of God, lately. Sure, I think about it often, but it seems like this is something I find I have been thinking about in my private times. When I think about his power, so many things come to mind... thunderstorms, rainbows, birth of children, the human mind, the list could go on and on. What are a few things that you think of when you think about the power of God?