Revelation 13:15-17

Young's Literal Translation

¹⁵ and there was given to it to give a spirit to the image of the beast, that also the image of the beast may speak, and [that] it may cause as many as shall not bow before the image of the beast, that they may be killed.

¹⁶ And it maketh all, the small, and the great, and the rich, and the poor, and the freemen, and the servants, that it may give to them a mark upon their right hand or upon their foreheads,

¹⁷ and that no one may be able to buy, or to sell, except he who is having the mark, or the name of the beast, or the number of his name.