Mark 5:19 Howbeit Jesus suffered him not, but saith unto him, Go home to thy friends, and tell them how great things the Lord hath done for thee, and hath had compassion on thee.
Outside the very Word of God the most powerful message you have is what God has done in your life. When people see the power of God affect our lives they can get an idea of just how true and great God is.
You should do more than just invite people to church. The greatest witness you have is what God has done or is doing. This man could have gone with Jesus into the ministry. He could have left his family, the area, those who knew him and what he was and had done. But Jesus told him to stay in his place and to share his story. He was to tell them how great God had been in their lives.
He was to share the gospel. The story plays out before our lives and we see that God used his testimony to prepare the hearts of many people to be saved.
You have a story as well. Your life and story can make a difference. I challenge you to use what God has done to make a major difference in your family and community!