16. And he caused all, both small and great, rich and poor, free and slaves, to receive a mark in their right hand, or in their foreheads;
17. and that no one might buy or sell, unless he has the mark or the name of the beast or the number of its name.
18. Here is wisdom. Let him that has understanding count the number of the beast: for the number of man; and its number is six hundred sixty-six.