And I will give unto my two witnesses, and they shall prophesy a thousand two hundred sixty days, clothed in sackcloth. These are the two olive trees, and the two candlesticks, that stand before the Lord of the earth. And if any man will hurt them, fire shall come out of their mouths, and shall devour their enemies. And if any man will hurt them, in this manner must he be slain. These have power to shut heaven, that it rain not in the days of their prophecy: and they have power over waters to turn them into blood, and to strike the earth with all plagues as often as they will.
Revelation 11:3-6