Paul does not merely desire that their love may abound, but that it may become more and more rich in knowledge and all discernment.' The former is perhaps accurate knowledge, and the latter the application of it. Discernment' literally means sense,' and here, of course, when employed about spiritual and moral things it means the power of apprehending good and bad as such. It is, I suppose, substantially equivalent to conscience, the moral tact or touch of the soul by which, in a manner analogous to bodily sense, it ascertains the moral character of things. This growth of love in the power of spiritual and moral discernment is desired in order to its exercise in proving things that differ.' It is a process of discrimination and testing that is meant, which is, I think, fairly represented by the more modern expression which I have used--keenness of conscience.
I need spend little time in remarking on the absolute need of such a process of discrimination. We are surrounded by temptations to evil, and live in a world where maxims and principles not in accordance with the gospel abound. Our own natures are but partially sanctified. The shows of things must be tested. Apparent good must be proved. The Christian life is not merely to unfold itself in peace and order, but through conflict. We are not merely to follow impulses, or to live as angels do, who are above sin, or as animals do who are beneath it. When false coin is current it is folly to accept any without a test. All around us there is glamour, and so within us there is need for careful watchfulness and quick discrimination.
This keenness of conscience follows on the growth of love. Nothing makes a man more sensitive to evil than a hearty love to God. Such a heart is keener to discern what is contrary to its love than any ethical maxims can make it. A man who lives in love will be delivered from the blinding influence of his own evil tastes, and a heart steadfast in love will not be swayed by lower temptations. Communion with God will, from its very familiarity with Him, instinctively discern the evil of evil, as a man coming out of pure air is conscious of vitiated atmosphere which those who dwell in it do not perceive. It used to be said that Venice glass would shiver into fragments if poison were poured into the cup. As evil spirits were supposed to be cast out by the presence of an innocent child or a pure virgin, so the ugly shapes that sometimes tempt us by assuming fair disguises will be shown in their native hideousness when confronted with a heart filled with the love of God.
Such keenness of judgment is capable of indefinite increase. Our consciences should become more and more sensitive: we should always be advancing in our discovery of our own evils, and be more conscious of our sins, the fewer we have of them. Twilight in a chamber may reveal some foul things, and the growing light will disclose more. Secret faults' will cease to be secret when our love abounds more and more in knowledge, and in all discernment.
