Revelation 11:3-7

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

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

And if anyone wants to harm them, fire flows out of their mouth and devours their enemies; and so if anyone wants to harm them, he must be killed in this way.

These have the power to shut up the sky, so that rain will not 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 plague, as often as they desire.

When they have finished their testimony, the beast that comes up out of the abyss will make war with them, and overcome them and kill them.