Revelation 13:12, Revelation 13:16-17

¹²And he ^aexercises all the authority of the first beast ¹^,^bin his presence. And he makes ^cthe earth and those who dwell in it to ^dworship the first beast, whose ^efatal wound was healed.

¹⁶And he causes all, ^athe small and the great, and the rich and the poor, and the free men and the slaves, that they ¹be given a ^bmark on their right hand or on their forehead, ¹⁷and that no one will be able to buy or to sell, except the one who has the ^amark, either ^bthe name of the beast or ^cthe number of his name.