But then, on the other side, note that no less distinctly is the sole foundation of this love laid in God's speech. My text, in its elevation of sentiment and character and conduct above doctrine, falls in with the prevailing tendencies of this day; but it provides the safeguards which these tendencies neglect. Notice that this favourite saying of the most advanced school of broad thinkers, who are always talking about the decay of dogma, and the unimportance of doctrine as compared with love, is here uttered by a man who was no sentimentalist, but to whom the Christian system was a most distinct and definite thing, bristling all over with the obnoxious doctrines which are by some of us so summarily dismissed as of no importance. My very text protests against the modern attempt to wrench away the sentiments and emotions produced in men, by the reception of Christian truth, from the truth which it recognises as the only basis on which they can be produced. It declares that the 'commandment' must come first, before love can follow; and the rest of the letter, although, as I say, it decisively places the end of revelation as being the moral and religious perfecting of men into assimilation with the divine love, no less decisively demands that for such a perfecting there shall be laid the foundation of the truth as it is revealed in Jesus Christ.
And that is what we want to-day in order to make breadth wholesome, and if only we will carry with us the two thoughts, the commandment and love, we shall not go far wrong. But what would you think of a man that said, 'I do not want any foundations. I want a house to live in'? And pray how are you going to get your house without the foundations? Or would he be a wise man who said, 'Oh, never mind about putting grapes into the vine vat, and producing fermentation; give me the wine!' Yes! But you must have the fermentation first. The process is not the result, of course, but there is no result without the process. And according to New Testament teaching, which, I am bold to say, is verified by experience, there is no deep, all-swaying, sovereign, heart-uniting love to God which is not drawn from the acceptance of the truth as it is in Jesus Christ.
II. And so I come, secondly, to note the purifying which is needed prior to such love.
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.