How long has it taken the Christian Church to learn the wickedness of slavery? Has the Christian Church yet learned the unchristianity of War? Are there no abuses amongst us, which subsequent generations will see to be so glaring that they will talk about us as we talk about our ancestors, and wonder whether we were Christians at all when we could tolerate such things? They creep on gradually, and they need continual watchfulness if they are not to assume the mastery. The special type of corruption which we find in this incident is one that besets the Church always. Of course, if I were preaching to ministers, I should have a great deal to say about that. For men that are necessarily paid for preaching have a sore temptation to preach for pay. But it is not only we professionals who have need to lay to heart this incident. It is all Christian communities, established and non-established churches, Roman Catholic and Protestant. The same danger besets them all. There must be money to work the outward business of the house of God. But what about people that 'run' churches as they run mills? What about people whose test of the prosperity of a Christian community is its balance-sheet? What about the people that hang on to religious communities and services for the sake of what they can make out of them? We have heard a great deal lately about what would happen 'if Christ came to Chicago.' If Christ came to any community of professing Christians in this land, do you not think He would need to have the scourge in His hand, and to say 'Make not My Father's house a house of merchandise'? He will come; He does come; He is always coming if we would listen to Him. And at long intervals He comes in some tremendous and manifest fashion, and overthrows the money-changers' tables. Ah, brethren! if Jesus Christ had not thus come, over and over again, to His Church, Christian men would have killed Christianity long ago. Did you ever think that Christianity is the only religion that has shown recuperative power and that has been able to fling off its peccant humours? They used to say—I do not know whether it is true or not—that Thames water was good to put on board ship because of its property of corrupting and then clearing itself, and becoming fit to drink. We and our brethren, all through the ages, have been corrupting the Water of Life. And how does it come to be sweet and powerful still? This tree has substance in it when it casts its leaves. That unique characteristic of Christianity, its power of reformation, is not self-reformation, but it is a coming of the Lord to His temple to 'purify the sons of Levi, that their offering may be pleasant as in days of yore.'