My sons Jacob and Zachary have baseball cards. Hundreds of them. They like to spend time with them, because the cards feed two of their passions: baseball and numbers. They organize and re-organize the cards. They play fictional baseball games, complete with playoffs, with them. Most important, they show the cards off to their friends. Even adults who come over to the house are likely to be introduced to the baseball cards collection by my sons. I have a friend named Frank. He's retired, and is an expert woodworker. Visitors to his house will be treated to the tour: he loves to show you the gorgeous cherrywood rocking horse, the grandfather clock, and countless other items he has made out of wood. They're all quite beautiful; very impressive. It's Frank's passion, and he loves to share what he has done with others. For the last 15 years, I have had a friend named Tim Wright. His title was Pastor of Small Groups and Assimilation. We all know what a small group is, bu...