Revelation 13:16-18

BBE(i) 16 And he gives to all, small and great, the poor and those who have wealth, the free and those who are not free, a mark on their right hand or on their brows; 17 So that no man might be able to do trade but he who has the mark, even the name of the beast or the number of his name. 18 Here is wisdom. He who has knowledge let him get the number of the beast; because it is the number of a man: and his number is Six hundred and sixty-six.