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The god of this world named Satan the Adversary of God—has two viruses he has been infecting all of humanity with since the dawn of the human race:
Religion (making my own way to God) & Materialism (things are more important than God)
-Religion is trying to achieve God’s favor by human achievement.
-Materialism is seeking physical things (pleasures, possessions, power) more than God.
To understand Rev 17/18 we have to go back to Genesis