Believe me, my dear friends, this is no mere theory. It is to me a matter of fact and experience. I cannot, I have long found, keep my attention steady during a service, if I do not make the responses aloud;- -if I do not join in with my voice, I find my thoughts wandering; and I am bound to suppose that the case is the same with you. Do not, therefore, think me impertinent or interfering, if I ask you all to take your due share in worshipping God in this church with your voices, as well as with your hearts. Let these services be more lively, more earnest, more useful to us all than they have been, by making them more a worship of the whole congregation, and not of the minister alone. I have read of a great church in the East, in days long, long ago, in which the responses of the vast congregation were so unanimous, so loud, that they sounded (says the old writer) like a clap of thunder. That is too much to expect in our little country church: but at least, I beg you, take such an open part in the responses, that you shall all feel that you are really worshipping together the same God and Christ, with the same heart and mind; and that if a stranger shall come in, he may say in his heart: Here are people who are in earnest, who know what they are about, and are not ashamed of trying to do it; people who evidently mean what they say, and therefore say what they mean. SERMON XXV. THE PEACE OF GOD Baltimore, U.S., 1874. Westminster Abbey. November 8, 1874. Colossians. iii 15. "Let the peace of God rule in your hearts." The peace of God. That is what the priest will invoke for you all, when you leave this abbey. Do you know what it is? Whether you do or not, let me tell you in a few words, what I seem to myself to have learned concerning that peace. What it is? how we can obtain it? and why so many do not obtain it, and are, therefore, not at peace?