The positions of Universalism, Pluralism, Inclusivism, and Exclusivism is very important in doing missions, for one to do mission effectively he or she must know the positions of universalism, pluralism, inclusivism, and exclusivism, so many missionaries witness Christ to the unbelievers wrongly because they done understand the four views of mission theology, as the result of that instead of witnessing Christ in a biblical way, baiting is taking the other of the day. That is why instead of raising strong Christians weak Christians are produced. 

Many thought there is no need of missions, many also thought there is need for missions. Because of the way they understand universalism, pluralism. Inclusivism, and exclusivism. This research is library base. Though many have writing on mission theologies. This research is the significance of mission theology for effective Christian witnessing. This study affirmed that those who hold unto the position of universalism, pluralism, and inclusivism does not think doing missions is necessary, while those who hold unto exclusivism which according to the biblical principles support and encourage doing missions as necessary. (Matthew 28:19-20, Acts 1:8, etc.)