20 But the beast was taken prisoner, and along with it the false prophet, who had performed the signs in its presence. He deceived those who accepted the mark of the beast and those who worshiped its image with these signs.a Both of them were thrown alive into the lake of fire that burns with sulfur.b 21 The rest were killed with the sword that came from the mouth of the rider on the horse, and all the birds ate their fill of their flesh.