Revelation 11:3-6

3And I will empower my two witnesses, and they will prophesy for 1,260 days, clothed in sackcloth.”

4These witnesses are the two olive trees and the two lampstands that stand before the Lord of the earth.1 5If anyone wants to harm them, fire proceeds from their mouths and devours their enemies. In this way, anyone who wants to harm them must be killed. 6These witnesses have power to shut the sky so that no rain will fall during the days of their prophecy, and power to turn the waters into blood and to strike the earth with every kind of plague as often as they wish.