Revelation 14:4-9

4These are they that were not defiled with women; for they are virgins. These are they that follow the Lamb whithersoever he goeth. These were purchased from among men, to be the firstfruits unto God and unto the Lamb. 5And in their mouth was found no lie: they are without blemish.

6And I saw another angel flying in mid heaven, having eternal good tidings to proclaim unto them that dwell on the earth, and unto every nation and tribe and tongue and people; 7and he saith with a great voice, Fear God, and give him glory; for the hour of his judgment is come: and worship him that made the heaven and the earth and sea and fountains of waters.

8And another, a second angel, followed, saying, Fallen, fallen is Babylon the great, that hath made all the nations to drink of the wine of the wrath of her fornication.

9And another angel, a third, followed them, saying with a great voice, If any man worshippeth the beast and his image, and receiveth a mark on his forehead, or upon his hand,