III. Lastly, note here the threefold conflict of the Spirit through the Church with the world. 'When He is come He will convict the world' in respect 'of sin and of righteousness and of judgment.' By the 'reproof,' or rather 'conviction,' which is spoken about here, is meant the process by which certain facts are borne in upon men's understanding and consciences, and, along with these facts, the conviction of error and fault in reference to them. It is no mere process of demonstration of an intellectual truth, but it is a process of conviction of error in respect to great moral and religious truth, and of manifestation of the truths in regard to which the error and the sin have been committed. So we have here the triple division of the great work which the divine Spirit does, through Christian men and women, in the world. 'He shall convict the world of sin.' The outstanding first characteristic of the whole Gospel message is the new gravity which it attaches to the fact of sin, the deeper meaning which it gives to the word, and the larger scope which it shows its blighting influences to have had in humanity. Apart from the conviction of sin by the Spirit using the word proclaimed by disciples, the world has scarcely a notion of what sin is, its inwardness, its universality, the awfulness of it as a fact affecting man's whole being and all his relations to God. All these conceptions are especially the product of Christian truth. Without it, what does the world know about the poison of sin? And what does it care about the poison until the conviction has been driven home to the reluctant consciousness of mankind by the Spirit wielding the word? This conviction comes first in the divine order. I do not say that the process of turning a man of the world into a member of Christ's Church always begins, as a matter of fact, with the conviction of sin. I believe it most generally does so; but without insisting upon a pedantic adherence to a sequence, and without saying a word about the depth and intensity of such a conviction, I am here to assert that a Christianity which is not based upon the conviction of sin is an impotent Christianity, and will be of very little use to the men who profess it, and will have no power to propagate itself in the world. Everything in our conception of the Gospel of Jesus Christ and of His work for us depends upon what we think about this primary fact of man's condition, that he is a sinful man. The root of all heresy lies there. Every error that has led away men from Jesus Christ and His Cross may be traced up to defective notions of sin and a defective realisation of it. If I do not feel as the Bible would have me feel, that I am a sinful man, I shall think differently of Jesus Christ and of my need of Him, and of what He is to me. Christianity may be to me a system of beautiful ethics, a guide for life, a revelation of much precious truth, but it will not be the redemptive power without which I am lost.