This is a discussion of religion and ethics, their relation to one another and their dependence upon one another. The author disclaims any attempt to outline a system of Christian ethics, but his discussion of ""religion and morality"", ""morality in a religious context,"" ""the religious apprehension of moral values"", and the elaboration of his definition of Christian ethics as personal fellowship with God and man will be stimulating to religionists and students of ethics. In the course of the book the author deals with many current ideologies, such as Marxism, Barthianism, existentialism and pacifism, from the standpoint of liberal Protestantism.