The Beatitudes: The Key

The key to the Sermon on the Mount is the way He used two expressions: one was, "You have heard"; the other was the short, emphatic word, "But." When He said, "You have heard," He reached back to what human ears had heard for centuries and still hear from ethical reformers -- all those rules and codes and precepts which are half measures between instinct and reason, between local customs and the highest ideals. When He said, "You have heard," He included the Mosaic Law, Buddha with his eightfold way, Confucius with his rules for being a gentleman, Aristotle with his natural happiness, the broadness of the Hindus, and all the humanitarian groups of our day, who would translate some of the old codes into their own language and call them a new way of life. Of all these compromises, He said, "You have heard."

Life of Christ by Fulton Sheen