By Amanda Markel   The Lutheran church has quite a few feast days and commemorations. One of my favorite of these days is the feast of St. Michael and All Angels (also know as St. Michael’s Day or Michaelmas). It falls on September 29 every year, and it’s not just a commemoration day…it’s one of the Principal Feasts of Christ!   Here is what the Treasury of Daily Prayer has to say about this feast day: “The name of the archangel St. Michael means “Who is like God?” Michael is mentioned in the Book of Daniel (12:), as well as in Jude (v. 9) and Revelation (12:7). Daniel portrays Michael…