The perfect Lutheran hymn is “O Lord, How Shall I Meet You” for the weeks before Christmas, but shoppers will never hear it between Muzak versions of “Jingle Bells” and “White Christmas” in their local malls.The key is that “O Lord, How Shall I Meet You” is from the penitential season of Advent, said Pastor Will Weedon. That’s the four weeks preceding Christmas in litur...