What does Babylon really mean in Revelation? Beyond the ancient Mesopotamian city, Babylon represents in Scripture the supreme symbol of human rebellion against God: idolatry, corruption, and the forces that oppose the kingdom of the Messiah. Father Fortea offers us an original interpretation of this prophetic text, aware of the immense responsibility involved in addressing the vision that closes the entire Bible. His proposal is not an exhaustive compilation of interpretations, but a luminous synthesis that understands Revelation as a complete unit, symbolically connecting with Genesis: from the rivers of Eden to the river of New Jerusalem. For the author, Revelation transcends any particular empire or dynasty. It speaks of the absolute End, of the final destiny of the world, and constitutes the epic text par excellence of universal literature. In terms of literary beauty, he considers it comparable only to Ecclesiastes, and the perfect conclusion that seals the Word of God.