Irenaeus Against Heresies Book V And he shall perform great wonders, so that he can even cause fire to descend from heaven upon the earth in the sight of men, and he shall lead the inhabitants of the earth astray."[245] Hippolytus Dogmatical and Historical Fragments Let him that hath understanding count the number of the beast; for if is the number of a man, and his number is six hundred threescore and six."[108]