(2) But there is a secondary and auxiliary source for formulation of Christian ethics--in the Christian moral consciousness. In this, Christianity exhibits its moral principles and meaning as they enter into the inner experience of men, where they may be studied and estimated. Christianity is a "life," a "new life," in whose moral consciousness its principles and forces are acting formatively for character. Not only of "the life" that in Christ was "the light of men,"[66] but of all the pure life that is from him, is it true: "the life is the light of men." The ethicised Christian consciousness reveals the principles and laws that have come into it. It is a maxim in theology that only the regenerated and sanctified mind has a clear interpretative insight into spiritual truth, and can form the true theologian. The maxim holds, just as truly, with respect to moral truth. The spiritual and moral are inseparably united, and no man can judge with unhindered and reliable discrimination in matters of Christian ethics whose heart is unsympathetic or averse to the duties of the Christian life. The light shines in the darkness, but the darkness comprehends it not. Christian ethics, therefore, in formulating its ideas and completing its theoretical view rightly, draws upon the Christian consciousness, as that consciousness is scripturally determined, and interprets, not the Scriptures alone, but also, in auxiliary relation, the ethicised life of Christian humanity. While, therefore, it is the science of Biblical morality, it is also of the whole moral development of Christianized life, both in personal consciousness and in the observed historical fruitage of Scripture doctrine. =4.= It is necessary to look at some of the particular elements or features of the clearer and fuller ethical view which comes from these sources. ==Duties made More Definite.==