Revelation 11:3-6

And I will give power to my two witnesses, and they will be clothed in burlap and will prophesy during those 1,260 days.” These two prophets are the two olive trees and the two lampstands that stand before the Lord of all the earth. If anyone tries to harm them, fire flashes from their mouths and consumes their enemies. This is how anyone who tries to harm them must die. They have power to shut the sky so that no rain will fall for as long as they prophesy. And they have the power to turn the rivers and oceans into blood, and to strike the earth with every kind of plague as often as they wish.