The author reflects the foundations of the moral theology in the perspective of the systematic theology. Should the ethic bear the adjective Christian, it must start from the Revelation, specifically from the Image of God, from the christology, from the soteriology, from the pneumatology and from the anthropology.
The key issue is the relation between Christ as Saviour and varios forms of the Law. The second problem ist the presentation of the ethical principles to those who do not share the faith in Christ.