Of course the tendency to it is in us all. Take a bar of iron out of the furnace on a winter day, and lay it down in the air, and there is nothing more wanted. Leave it there, and very soon the white heat will change into livid dulness, and then there will come a scale over it, and in a short time it will be as cold as the frosty atmosphere around it. And so there is always a refrigerating process acting upon us, which needs to be counteracted by continual contact with the fiery furnace of spiritual warmth, or else we are cooled down to the degree of cold around us. But besides this universally operating cause there are many others which affect us.
Laodicea was a great commercial city, an emporium of trade, which gives especial point and appropriateness to the loving counsel of the context. I advise thee to buy of Me gold tried in the fire.' And Manchester life, with its anxieties, with its perplexities for many of you, with its diminished profits, and apparently diminishing trade, is a fearful foe to the warmth and reality of your Christian life. The cares of this world, and the riches of this world are both amongst the thorns which choke the Word and make it unfruitful. I find fault with no man for the earnestness which he flings into his business, but I ask you to contrast this entire absorption of spirit, and the willing devotion of hours and strength to it, with the grudging, and the partial, and the transient devotion of ourselves to the religious life; and say whether the relative importance of the things seen and unseen is fairly represented by the relative amount of earnestness with which you and I pursue these respectively.
Then, again, the existence among us, or around us, of a certain widely diffused doubt as to the truths of Christianity is, illogically enough, a cause for diminished fervour on the part of the men that do not doubt them. That is foolish, and it is strange, but it is true. It is very hard for us, when so many people round about us are denying, or at least are questioning, the verities which we have been taught to believe, to keep the freshness and the fervour of our devotion to these; just as it is very difficult for a man to keep up the warmth of his body in the midst of some creeping mist that enwraps everything. So with us, the presence, in the atmosphere of doubt, depresses the vitality and the vigour of the Christian Church where it does not intensify its faith, and make it cleave more desperately to the things that are questioned. Beware, then, of unreasonably yielding so far to the influence of prevailing unbelief as to make you grasp with a slacker hand the thing which still you do not say that you doubt.
And there is another case, which I name with some hesitation, but which yet seems to me to be worthy of notice; and that is, the increasing degree to which Christian men are occupied with what we call, for want of a better name, secular things. The leaders in the political world, on both sides, in our great commercial cities, are usually professing Christians. I am the last man to find fault with any Christian man for casting himself, so far as his opportunities allow, into the current of political life, if he will take his Christianity with him, and if he will take care that he does not become a great deal more interested in elections, and in pulling the strings of a party, and in working for the cause,' than he is in working for his Master. I grudge the political world nothing that it gets of your strength, but I do grudge, for your sakes as well as for the Church's sake, that so often the two forms of activity are supposed by professing Christians to be incompatible, and that therefore the more important is neglected, and the less important done. Suffer the word of exhortation.
And, in like manner, literature and art, and the ordinary objects of interest on the part of men who have no religion, are coming to absorb a great deal of our earnestness and our energy. I would not withdraw one iota of the culture that now prevails largely in the Christian Church. All that I plead for, dear brethren, is this, Ye are the salt of the earth.' Go where you like, and fling yourselves into all manner of interests and occupations, only carry your Master with you. And remember that if you are not salting the world, the world is putrefying you.
There I think you have some, though it be imperfect, account of the causes which operate to lower the temperature of the Christian Church in general, and of this Christian Church, and of you as individual members of it.