A friend once pastored a church with a beautiful building. On a clear, sunny day, everything looked great: stone facade, majestic cross, and windows that were both shiny and clear. A hard rain exposed a flaw you couldn't see on a sunny day. The clear, shiny windows leaked. Right after a good rain, a dark semicircle of water marked the hallways by the windows. Those water stains were tattletales. The building was brand new. The building leaked, not because of age, but because of shoddy workmanship. The stains on the carpets pointed their fingers at the contractor. Any insistent storm peeled back the curtain and exposed a sin that no one could see in the sunshine.

Matthew closes out the Sermon on the Mount with a parable from Jesus about what happens after a storm. The parable tells us abou…