Revelation 11:7 in the King James Version
And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.
Context
6 These have the power to shut up the sky, that it may not rain during the days of their prophecy. They have power over the waters, to turn them into blood, and to strike the earth with every plague, as often as they desire.
7 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.
8 Their dead bodies will be in the street of the great city, which spiritually is called Sodom and Egypt, where also their Lord was crucified.