In Revelation 17 and 18, the fall of the harlot Babylon is described as a symbol of the ultimate destruction of evil and corruption. The chapters depict Babylon as a great city representing moral decadence, material wealth, and spiritual idolatry. The fall of Babylon is prophesied as a judgment from God for her sins and wickedness. In dramatic and vivid language, the downfall of Babylon is portrayed as sudden, catastrophic, and irreversible. The chapters emphasize the contrast between the temporary power and riches of Babylon and the eternal glory and righteousness of God's kingdom. Ultimately, the fall of the harlot Babylon serves as a warning about the consequences of turning away from God and choosing to follow worldly temptations.