This diploma thesis is concerning the ethical aspect of Saint Luke's Gospel. The focus is on Jesus, who is shown as an example of ethical life and the basis of his moral teaching. These teachings are penance, correct property usage, loving fellowman, disciples, prayer and reversing the fate in connection to the welfare of poor people. This thesis also looks at God's kingdom and the ethical ramification which it yields. The moral teaching of Jesus is the subject matter of Evangelism and therefore Luke shows Jesus as a preacher on a Great Journey. The second part of this work is dedicated to the analysis of The Sermon on the Plain and parables about the Good Samaritan which graphically illustrate moral command and its practical application in life. The selected texts have been analyzed in the framework of individual versus in relationship to the whole teaching in which they are placed (in context to the whole work). This diploma thesis is based upon descriptive methods and analysis of text.