The principle of division of labour in our text is repeated several times in this list of the builders. It was a natural one; a man would work all the better when he saw his own roof mutely appealing to be defended, and thought of the dear ones that were there. But I take these words mainly as suggesting some thoughts applicable to the duties of Christian people in view of the spiritual wants of our great cities. I. I need not do more than say a word or two about the ruins which need repair. If I dwell rather upon the dark side than on the bright side of city life I shall not be understood, as forgetting that the very causes which intensify the evil of a great city quicken the good--the friction of multitudes and the impetus thereby given to all kinds of mental activity. Here amongst us there is much that is admirable and noble--much public spirit, much wise and benevolent expenditure of thought and toil for the general good, much conjoint action by men of different parties, earnest antagonism and earnest co-operation, and a free, bracing intellectual atmosphere, which stimulates activity. All that is true, though, on the other hand, it is not good to live always within hearing of the clatter of machinery and the strife of tongues; and the wisdom that is born of solitary meditation and quiet thought is less frequently met with in cities than is the cleverness that is born of intercourse with men, and newspaper reading. But there is a tragic other side to all that, which mostly we make up our minds to say little about and to forget. The indifference which has made that ignorance possible, and has in its turn been fed by the ignorance, is in some respects a more shocking phenomenon than the vicious life which it has allowed to rot and to reek unheeded.