An observation from Mark 5

I recently read Mark chapter 5. The demon possessed man went home and told everyone how Jesus had delivered him from the demons. He told a real story about how Jesus had touched his life and changed him. People took notice and listened. It occurred to me that as Christians we are constantly challenged to share Jesus and evangelize the lost. Here lies the real lesson for us in this mans storytelling, perhaps the reason Christians today are slow to tell the story of Jesus and so few listen when we do tell it is, Jesus has never done anything in our lives. Has Jesus delivered you or are you a merely a cultural Christian out of habit?