You will remember, too, how our Lord Himself employs the same metaphor when He speaks about His coming to bring fire on the earth, and His longing to see it kindled into a beneficent blaze. In this connection the fire is a symbol of a quick, triumphant energy, which will transform us into its own likeness. There are two sides to that emblem: one destructive, one creative; one wrathful, one loving. There are the fire of love, and the fire of anger. There is the fire of the sunshine which is the condition of life, as well as the fire of the lightning which burns and consumes. The emblem of fire is selected to express the work of the Spirit of God, by reason of its leaping, triumphant, transforming energy. See, for instance, how, when you kindle a pile of dead green-wood, the tongues of fire spring from point to point until they have conquered the whole mass, and turned it all into a ruddy likeness of the parent flame. And so here, this fire of God, if it fall upon you, will burn up all your coldness, and will make you glow with enthusiasm, working your intellectual convictions in fire not in frost, making your creed a living power in your lives, and kindling you into a flame of earnest consecration. The same idea is expressed by the common phrases of every language. We speak of the fervour of love, the warmth of affection, the blaze of enthusiasm, the fire of emotion, the coldness of indifference. Christians are to be set on fire of God. If the Spirit dwell in us, He will make us fiery like Himself, even as fire turns the wettest green-wood into fire. We have more than enough of cold Christians who are afraid of nothing so much as of being betrayed into warm emotion. I believe, dear brethren, and I am bound to express the belief, that one of the chief wants of the Christian Church of this generation, the Christian Church of this city, the Christian Church of this chapel, is more of the fire of God! We are all icebergs compared with what we ought to be. Look at yourselves; never mind about your brethren. Let each of us look at his own heart, and say whether there is any trace in his Christianity of the power of that Spirit who is fire. Is our religion flame or ice? Where among us are to be found lives blazing with enthusiastic devotion and earnest love? Do not such words sound like mockery when applied to us? Have we not to listen to that solemn old warning that never loses its power, and, alas! seems never to lose its appropriateness: 'Because thou art neither cold nor hot, I will spue thee out of My mouth.' We ought to be like the burning beings before God's throne, the seraphim, the spirits that blaze and serve. We ought to be like God Himself, all aflame with love. Let us seek penitently for that Spirit of fire who will dwell in us all if we will.