Now I have already referred to the relation between the words of my text and those immediately preceding, as being in some sense one of opposition and contrast. I think we are put on the right track for understanding the solemn words of this text if we remember the great saying of John the Baptist, where, in precisely similar fashion, there are set side by side the two conceptions of the chaff being cast into the unquenchable fire (the same expression as in our text), and' He shall baptize you with the Holy Ghost and with fire.'
The salting fire, then, which cleanses and preserves, and to which every Christian soul must submit itself, to be purged thereby, is, as I take it, primarily and fundamentally the fire of that Divine Spirit which Christ Himself told us that He had come to cast upon the earth, and yearned, in a passion of desire, to see kindled. The very frequent use of the emblem in this same signification throughout Scripture, I suppose I need not recall to you. It seems to me that the only worthy interpretation of the words before us, which goes down into their depths and harmonises with the whole of the rest of the teaching of Scripture, is that which recognises these words of my text as no unwelcome threat, as no bitter necessity, but as a joyful promise bringing to men, laden and burdened with their sins, the good news that it is possible for them to be purged from them entirely by the fiery ministration of that Divine Spirit. Just as we take a piece of foul clay and put it into the furnace, and can see, as it gets red-hot, the stains meltaway, as a cloud does in the blue, from its surface, so if we will plunge ourselves into the influences of that divine power which Christ has come to communicate to the world, our sin and all our impurities will melt from off us, and we shall be clean. No amount of scrubbing with soap and water will do it. The stain is a great deal too deep for that, and a mightier solvent than any that we can apply, if unaided and unsupplied from above, is needed to make us clean. Who can bring a clean thing out of an unclean,' especially when the would-be bringer is himself the unclean thing? Surely not one. Unless there be a power ab extra, unparticipant of man's evils, and yet capable of mingling with the evil man's inmost nature, and dealing with it, then I believe that universal experience and our individual experience tell us that there is no hope that we shall ever get rid of our transgressions.
Brethren, for a man by his own unaided effort, however powerful, continuous, and wisely directed it may be, to cleanse himself utterly from his iniquity, is as hopeless as it would be for him to sit down with a hammer and a chisel and try by mechanical means to get all the iron out of a piece of ironstone. The union is chemical, not mechanical. And so hammers and chisels will only get a very little of the metal out. The one solvent is fire. Put the obstinate crude ore into your furnace, and get the temperature up, and the molten metal will run clear. There should be mountains of scoriae, the dross and relics of our abandoned sins, around us all.
If we desire to be delivered, let us go into the fire. It will burn up all our evil, and it will burn up nothing else. Keep close to Christ. Lay your hearts open to the hallowing influences of the motives and the examples that lie in the story of His life and death. Seek for the fiery touch of that transforming Spirit, and be sure that you quench Him not, nor grieve Him. And then your weakness will be reinvigorated by celestial powers, and the live coal upon your lips will burn up all your iniquity.
But, subordinately to this deepest meaning, as I take it, of the great symbol of our text, let me remind you of another possible application of it, which follows from the preceding. God's Spirit cleanses men mainly by raising their spirits to a higher temperature. For coldness is akin to sin, and heavenly warmth is akin to righteousness. Enthusiasm always ennobles, delivers men, even on the lower reaches of life and conduct from many a meanness and many a sin. And when it becomes a warmth of spirit kindled by the reception of the fire of God, then it becomes the solvent which breaks the connection between me and my evil. It is the cold Christian who makes no progress in conquering his sin. The one who is filled with the love of God, and has the ardent convictions and the burning enthusiasm which that love ought to produce in our hearts, is the man who will conquer and eject his evils.
Nor must we forget that there is still another possible application of the words. For whilst, on the one hand, the Divine Spirit's method of delivering us is very largely that of imparting to us the warmth of ardent, devout emotion; on the other hand, a part of this method is the passing of us through the fiery trials and outward disciplines of life. Every one shall be salted with fire' in that sense. And we have learned, dear brethren, but little of the lovingkindness of the Lord if we are not able to say, I have grown more in likeness to Jesus Christ by rightly accepted sorrows than by anything besides.' Be not afraid of calamities; be not stumbled by disaster. Take the fiery trial which is sent to you as being intended to bring about, at the last, the discovery unto praise and honour and glory' of your faith, that is much more precious than gold that perisheth, though it be tried with fire.' Every one shall besalted with fire,' the Christian law of life is, Submit to the fiery cleansing. Alas! Alas! for the many thousands of professing Christians who are wrapping themselves in such thick folds of non-conducting material that that fiery energy can only play on the surface of their lives, instead of searching them to the depths. Do you see to it, dear brethren, that you lay open your whole natures, down to the very inmost roots, to the penetrating, searching, cleansing power of that Spirit. And let us all go and say to Him, Search me, O God I and try me, and see if there be any wicked way in me.'
