And I will grant my two witnesses power to prophesy for one thousand two hundred and sixty days, clothed in sackcloth.” These are the two olive trees and the two lampstands which stand before the Lord of the earth. And if any one would harm them, fire pours out from their mouth and consumes their foes; if any one would harm them, thus he is doomed to be killed. They have power to shut the sky, that no rain may fall during the days of their prophesying, and they have power over the waters to turn them into blood, and to smite the earth with every plague, as often as they desire.
–Revelation 11:3-6