It is the current trend that pastors write new sermons every time they preach. In fact, it's somewhat frowned upon when pastors preach something that has been preached before, either by them or by someone else. However, this hasn't always been the case. Even into the twentieth century, preachers (and some famous ones at that) would use the same sermon over and over again, and sometimes even read the sermons of other famous preachers. (With due credit given, of course.) Luther himself encouraged pastors to reuse their own sermons or borrow someone else's if they didn't have a good one handy. (Meaning, of course, one that preached first the Law and then the Gospel.)
All of this is to say that my sermon today is not new, but is a sermon from Pentecost 2005. You can read it at http://kayko.blogspot.com/2005_05_01_archive.html and scroll down to May 15th. I believe that it is still timely and an appropriate message for today.