Revelation 11:5-6

And if anyone tries to hurt them, fire comes from their mouths and kills their enemies. And if anyone tries to hurt them in whatever way, in that same way that person will die. These witnesses have the power to stop the sky from raining during the time they are prophesying. And they have power to make the waters become blood, and they have power to send every kind of trouble to the earth as many times as they want.