At the close of an inquiry meeting in our church in Chicago, one of our best workers brought to me an engineer on the Pan Handle Railway with the remark, “I wish that you would speak to this man. I have been talking to him two hours with no result.” I sat down by his side with my open Bible and in less than ten minutes that man, under deep conviction of sin, was on his knees crying to God for mercy. The worker who had brought him to me said when the man had gone out, “That is very strange.” “What is strange?” I asked. “Do you know,” the worker said, “I used exactly the same passages in dealing with that man that you did, and though I had worked with him for two hours with no result, in ten minutes with the same passages of Scripture, he was brought under conviction of sin and accepted Christ.” What was the explanation? Simply this, for once that worker had forgotten something that she seldom forgot, namely, that the Holy Spirit must do the work. She had been trying to convince the man of sin. She had used the right passages; she had reasoned wisely; she had made out a clear case, but she had not looked to the only One who could do the work. When she brought the man to me and said, “I have worked with him for two hours with no result,” I thought to myself, “If this expert worker has dealt with him for two hours with no result, what is the use of my dealing with him?” and in a sense of utter helplessness I cast myself upon the Holy Spirit to do the work and He did it. But while we cannot convince men of sin, there is One who can, the Holy Spirit. He can convince the most hardened and blinded man of sin. He can change men and women from utter carelessness and indifference to a place where they are overwhelmed with a sense of their need of a Saviour. How often we have seen this illustrated. Some years ago, the officers of the Chicago Avenue Church were burdened over the fact that there was so little profound conviction of sin manifested in our meetings. There were conversions, a good many were being added to the church, but very few were coming with an apparently overwhelming conviction of sin. One night one of the officers of the church said, “Brethren, I am greatly troubled by the fact that we have so little conviction of sin in our meetings. While we are having conversions and many accessions to the church, there is not that deep conviction of sin that I like to see, and I propose that we, the officers of the church, meet from night to night to pray that there may be more conviction of sin in our meetings.” The suggestion was taken up by the entire committee. We had not been praying many nights when one Sunday evening I saw in the front seat underneath the gallery a showily dressed man with a very hard face. A large diamond was blazing from his shirt front. He was sitting beside one of the deacons. As I looked at him as I preached, I thought to myself, “That man is a sporting man, and Deacon