Our text, as I said, divides the process into stages; or, if I may go back to a former illustration, into levels. And on the level immediately above the love, down into which the waters of the twin lakes glide, are a pure heart and a good conscience. These are the requisites for all real and operative love. Now they are closely connected, as it seems to me, more closely so than with either the stage which precedes or that which follows. They are, in fact, two twin thoughts, very closely identified, though not quite identical.
A pure heart is one that has been defecated and cleansed from the impurities which naturally attach to human affections. A good conscience' is one which is void of offence towards God and man, and registers the emotions of a pure heart. It is like a sheet of sensitive paper that, with a broken line, indicates how many hours of sunshine in the day there have been. We need not discuss the question as to which of these two great gifts and blessings which sweeten a whole life come first. In the initial stages of the Christian life I suppose the good conscience precedes the pure heart. For forgiveness which calms the conscience and purges it of the perilous stuff which has been injected into it by our corruptions--forgiveness comes before cleansing, and the conscience is calm before the heart is purified. But in the later stages of the Christian life the order seems to be reversed, and there cannot be in a man a conscience that is good unless there is a heart that is pure.
But however that may be--and it does not affect the general question before us--mark how distinctly Paul lays down here the principle that you will get no real love of God or man out of men whose hearts are foul, and whose consciences are either torpid or stinging them. I need not dwell upon that, for it is plain to anybody that will think for a moment that all sin separates between a man and God; and that from a heart all seething and bubbling, like the crater of a volcano, with foul liquids, and giving forth foul odours, there can come no love worth calling so to God, nor any benevolence worth calling so to man. Wherever there is sin, unrecognised, unconfessed, unpardoned, there is a black barrier built up between a man's heart and the yearning heart of God on the other side. And until that barrier is swept away, until the whole nature receives a new set, until it is delivered from the love of evil, and from its self-centred absorption, and until conscience has taken into grateful hands, if I might so say, the greatest of all gifts, the assurance of the divine forgiveness, I, for one, do not believe that deep, vital, and life transforming love to God is possible. I know that it is very unfashionable, I know it is exceedingly narrow teaching, but it seems to me that it is Scriptural teaching; and it seems to me that if we will strip it of the exaggerations with which it has often been surrounded, and recognise that there may be a kind of instinctive and occasional recognition of a divine love, there may be a yearning after a clear light, and fuller knowledge of it, and yet all the while no real love to God, rooted in and lording over and moulding the life, we shall not find much in the history of the world, or in the experience of ourselves or of others, to contradict the affirmation that you need the cleansing of forgiveness, and the recognition of God's love in Jesus Christ, before you can get love worth calling so in return to Him in men's hearts.
Brethren, there is much to-day to shame Christian men in the singular fact which is becoming more obvious daily, of a divorce between human benevolence and godliness. It is a scandal that there should be so many men in the world who make no pretensions to any sympathy with your Christianity, and who set you an example of benevolence, self-sacrifice, enthusiasm for humanity, as it is called. I believe that the one basis upon which there can be solidly built benevolence to men is devotion to God, because of God's great love to us in Jesus Christ. But I want to stir, if I might not say sting, you and myself into a recognition of our obligations to mankind, more stringent and compelling than we have ever felt it, by this phenomenon of modern life, that a divorce has been proclaimed between philanthropy and religion. The end of the commandment is love, out of a pure heart, and of a good conscience.