Jesus said faith as small as a mustard seed could move mountains. I’m glad God rejoices in small amounts of faith, but what can be done through those who, like Jesus’ disciples, give up everything to follow Him? This week, our team in Costa Rica has be encouraged…and challenged…by the faith of two of our own... Jason and Kerby Harpst. Jason and Kerby are a precious couple, very special to Cheryl and me, who left our church this past year to begin full-time mission work in Costa Rica. Both were professionals, Jason an engineer and Kerby a teacher. They had a nice home, two nice cars, great friends, a wonderful church, the greatest pastor in the world (Okay, I threw that last part in…), but they had the “perfect” lifestyle in the United States. This week we’ve seen first hand how much they’ve given up…at least as far as the comforts of the world....…