Revelation 11:5-7

Mace(i) 5 if any man should offer to hurt them, fire will proceed out of their mouth, and destroy their enemies: whoever should hurt them, would by this means perish. 6 during their prophecy they have power to prevent any rain descending from heaven: their power extends over waters to turn them to blood, and to smite the earth with what plagues they please. 7 when they shall have finished their testimony, the beast that ascends out of the bottomless pit, will make war against them, overcome them, and kill them.