Revelation 9:21

 "And behold, I am coming quickly. 

Blessed is he who heeds the words of the prophecy of this book."     

Revelation 22:7  NASB

Nor did they repent of their murders, their magic arts, their sexual immorality or their thefts.

Nor did they repent of their murders, their magic arts 
Isaiah 47:9  "Both of these will overtake you in a moment, on a single day: loss of children and widowhood. They will come upon you in full measure, in spite of your many sorceries and all your potent spells." 
Isaiah 47:11-13  "Disaster will come upon you, and you will not know how to conjure it away. A calamity will fall upon you that you cannot ward off with a ransom; a catastrophe you cannot foresee will suddenly come upon you. Keep on, then, with your magic spells and with your many sorceries, which you have labored at since childhood. Perhaps you will succeed, perhaps you will cause terror. All the counsel you have received has only worn you out! Let your astrologers come forward, those stargazers who make predictions month by month, let them save you from what is coming upon you."
Revelation 18:23  "The light of a lamp will never shine in you (Babylon) again. The voice of bridegroom and bride will never be heard in you again. Your merchants were the world's important people. By your magic spell all the nations were led astray."

their sexual immorality or their thefts 
Revelation 17:1-5  One of the seven angels who had the seven bowls came and said to me, "Come, I will show you the punishment of the great prostitute, who sits by many waters. With her the kings of the earth committed adultery, and the inhabitants of the earth were intoxicated with the wine of her adulteries." Then the angel carried me away in the Spirit into a wilderness. There I saw a woman sitting on a scarlet beast that was covered with blasphemous names and had seven heads and ten horns. The woman was dressed in purple and scarlet, and was glittering with gold, precious stones and pearls. She held a golden cup in her hand, filled with abominable things and the filth of her adulteries. The name written on her forehead was a mystery:
                                   BABYLON THE GREAT
                          THE MOTHER OF PROSTITUTES
               AND OF THE ABOMINATIONS OF THE EARTH

(parentheses are mine)

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