The most fundamental truth in theological understanding of humanity is that human beings were created male and female in the image of God. This understanding of humanity is biblical and Christian. To secular culture should Theology introduce a new human image, and through this, a new humanity be reified and a direction as the light and the salt of the world be presented. This is because God's plan always contradicts the human plans that are led and spread by secular culture. Thus, only through repentance can human beings be transformed into “a new creature, a new Adam, a new image”. This humanity was designed by God and is actually developing through mysterious events that took place in the work of God's salvation. Theological anthropology from the perspective of God―God's love for man, God's will to save, and God's work of salvation―can actually and historically explain who human beings are. In this way, it presents the conditions and means necessary for the full realization of God's human plan for mankind. Humanity as the image of God studied by theological anthropology begins with the humanness revealed through the incarnation of Jesus Christ. This is the good news that the restoration of humanness was given to all mankind through the death, the resurrection, the ascension, and the second coming of Jesus Christ. This means God's plan that through the publicity of the Gospel, that is, the common good of the kingdom of God, human imperfection must be restored to the humanity of the kingdom of God that will be achieved through the Second Coming of Jesus Christ. This is because all the weaknesses of human beings due to their finite freedom stem from the sinful nature of man against God who has infinite freedom. It can be said that the personality as the image of God in man is not an attribute inherent in man itself, but as a humanity that God the Creator gave to mankind. If this person is adopted through the Gospel and the authority is added as a child of God, God's plan for humanity will be realized as a true humanity through the restoration of humanness. Through this, the culture of God's kingdom will expand in the world. This culture of God's kingdom can spread the ethics and morality that develops the common good of our society, thereby forming a healthy foundation for sustainable growth and democratic integration of our society. This will be seen as a phenomenon that develops new values for healthy civic competence that can develop social dynamism and integrity. In addition, the humanity of Christianity can prevent the dehumanization of future society by enacting a legal system in which the autonomy of high-tech science and technology is not abused, and sharing moral and ethical rights and obligations as a common good in society.