NET
7 When they have completed their testimony, the beast that comes up from the abyss will make war on them and conquer them and kill them.
Darby
7 And when they shall have completed their testimony, the beast who comes up out of the abyss shall make war with them, and shall conquer them, and shall kill them:
KJV
7 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.