Revelation 13:11-18 - The Second Beast From The Earth
11 And I saw another beast rising up out of the earth, and he had two horns like a lamb, though he spake as the dragon. 12 And he exerciseth all the authority of the first beast before him, and causeth the earth, and those who inhabit therein, to worship the first beast whose deadly wound was healed. 13 And he performeth great signs, so that he even causeth fire to come down from heaven to the earth, in the sight of men, 14 and deceiveth the inhabitants of the earth by the signs, which he is enabled to perform before the beast, saying to the dwellers upon the earth, that they should make an image for the beast who had the stroke of the sword, and survived. 15 And he is enabled to impart life to the image of the beast that even the image of the beast should speak, and cause as many as will not worship the image of the beast to be put to death. 16 And he causeth all the small and the great, the rich and the poor, the freemen and the slaves, to receive a brand upon their right hand, and upon their foreheads: 17 and that no man may buy or sell, but he that hath the mark impressed, or the name of the beast, or the number of his name.
18 Here is wisdom. Let him that hath understanding calculate the number of the beast: for it is the number of a man; and his number is six hundred sixty-six.