Revelation 13:16-18

Amplified Bible, Classic Edition

¹⁶ Also he compels all [alike], both small and great, both the rich and the poor, both free and slave, to be marked with an inscription [^[a]stamped] on their right hands or on their foreheads,

¹⁷ So that no one will have power to buy or sell unless he bears the stamp (mark, inscription), [that is] the name of the beast or the number of his name.

¹⁸ Here is [room for] discernment [a call for the wisdom ^[b]of interpretation]. Let anyone who has intelligence (penetration and insight enough) calculate the number of the beast, for it is a human number [the number of a certain man]; his number is 666.