Revelation 18:4-5

 "And behold, I am coming quickly. 

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

Revelation 22:7  NASB

Then I heard another voice from heaven say: " 'Come out of her, my people,' so that you will not share in her sins, so that you will not receive any of her plagues; for her sins are piled up to heaven, and God has remembered her crimes."

Come out of her, my people 
Isaiah 48:20  Leave Babylon, flee from the Babylonians! Announce this with shouts of joy and proclaim it. Send it out to the ends of the earth; say, "The LORD has redeemed his servant Jacob." 
Jeremiah 50:8  "Flee out of Babylon; leave the land of the Babylonians, and be like the goats that lead the flock."
Jeremiah 51:6  "Flee from Babylon! Run for your lives! Do not be destroyed because of her sins. It is time for the LORD's vengeance; he will repay her what she deserves."
Jeremiah 51:9  " 'We would have healed Babylon, but she cannot be healed; let us leave her and each go to our own land, for her judgment reaches to the skies, it rises as high as the heavens.' "
Jeremiah 51:45  "Come out of her, my people! Run for your lives! Run from the fierce anger of the LORD."
2 Corinthians 6:17  Therefore, "Come out from them and be separate, says the Lord. Touch no unclean thing, and I will receive you." (Isaiah 52:11)

so that you will not receive any of her plagues 
Genesis 19:15  With the coming of dawn, the angels urged Lot, saying, "Hurry! Take your wife and your two daughters who are here, or you will be swept away when the city is punished." 

for her sins are piled up to heaven 
2 Chronicles 28:9  But a prophet of the LORD named Oded was there, and he went out to meet the army when it returned to Samaria. He said to them, "Because the LORD, the God of your ancestors, was angry with Judah, he gave them into your hand. But you have slaughtered them in a rage that reaches to heaven."
Ezra 9:5-6  Then, at the evening sacrifice, I rose from my self-abasement, with my tunic and cloak torn, and fell on my knees with my hands spread out to the LORD my God and prayed: "I am too ashamed and disgraced, my God, to lift up my face to you, because our sins are higher than our hearts and our guilt has reached to the heavens."

and God has remembered her crimes 
Revelation 16:19  The great city split into three parts, and the cities of the nations collapsed. God remembered Babylon the Great and gave her the cup filled with the wine of the fury of is wrath.

(parentheses are mine)

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