Revelation 11:3-6

3And I will grant authority to my two witnesses, and they will prophesy for 1,260 days, clothed in sackcloth."

4These are the two olive trees and the two lampstands that stand before the Lord of the earth.

5And if anyone would harm them, fire pours from their mouth and consumes their foes. If anyone would harm them, this is how he is doomed to be killed.

6They have the 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 strike the earth with every kind of plague, as often as they desire.