What does it mean to be a Christian? How do I know I am a Christian? One of Jesus’ closest friends and most dedicated followers, a man named “John”, considered these questions. He listened carefully to the teachings of Christ and wrote a book capturing Christ’s teaching and ministry. In it, John makes four direct statements about how we, and the people around us, can know that we are Christians: the way we are transformed by Christ’s teaching, the way Christ’s love motivates our love for each other, the way we grow Christ-like character and the way we surrender our lives to following Christ.