Common perception is that a follower of Christ is someone who believes in the existence of God and believes in the deity of Christ. Simply believe that God exists and that he sent his son, and you are considered a Christ-follower. Such thinking, though, is flawed. It misses the critical distinction between belief and trust. A person might believe an airplane can fly but not be willing to trust in the airplane by actually boarding it and experiencing flight. Scripture not only calls us to a belief in the existence of God, but we are exhorted to entrust our lives and well being to God through Christ.
resource listed under Trust God