A little bit of testing

God said you could do anything you want with your new powers, but you have to test it out to be sure. Nothing too ambitious at first, you change the color or shape of a few pieces of furniture around you, then transform a pen into a fork and create a bar of gold out of thin air, which you then turn into butterflies in order to check wether you can create living creature. With those powers, you don't really need gold anyway.

You then decide to go further. You teleport yourself into a blank place made of pure light, out of time and space then wait a few minutes before going back to your bedroom. You check on your computer's clock and note that not a single second has passed. You then go back to the blank room and think about what you could do next.