John 16:8

He will convince [2], or convict the world. Others translate, he will reprove the world of sin, &c. These words have occasioned a great many expositions. I here follow St. Cyril, that the Holy Ghost will condemn the Jews, and all obstinate unbelievers, of their sin, in not believing, after so many miracles, and so many pregnant motives, that ought to induce them to submit to the Christian faith. 2ndly, Of justice, by shewing the justice and innocence of Christ, and also, that true justice and sanctification cannot be obtained, but by his grace. 3rdly, Of judgment, by shewing that the world, and the prince of this wicked world, the devil, is justly condemned, his empire in a great measure destroyed, and that all the wicked will be justly condemned, and punished with him. (Witham) --- The Holy Ghost, by his coming, brought over many thousands, 1st, To a sense of their sin, in not believing in Christ. 2ndly, To a conviction of the justice of Christ, now sitting at the right hand of his Father. And 3rdly, To a right apprehension of the judgment prepared for them that choose to follow Satan, who is already judged and condemned. (Challoner) --- The Greek text, in addition, has Greek: oti ou pisteuousin eis eme. Because they have not believed in me. This accusation and conviction of sin, cannot naturally fall on any, but the incredulous Jews. St. Augustine, Ven. Bede, St. John Chrysostom, Theophylactus, and many others, are of opinion, that this sin was their unbelief in Jesus, after all the miracles he had done in their presence, after so many prophecies so clearly accomplished in his person, after so many prodigies and wonders, which happened at his death, at his resurrection, and after his resurrection. They are accused, and convinced of sin, particularly by sensible effects of the Holy Spirit, in the apostles, by the gift of miracles and tongues, and that supernatural knowledge, which was communicated, not only to the apostles, but also to all the first Christians. These are the means, which the Paraclete, the consoling and assisting Spirit, makes us of, to condemn, and convince the world of sin; that is, of incredulity, which is the source and foundation of all other sins. The world had calumniated and despised its Saviour. It had condemned him, as a liar, as a seducer, magician, a man possessed by the devil, a destroyer of the law of God. To which the Son of God made no resistance; he only replied, that he did not wish to take the execution of justice upon himself, and that he was not come into the world to judge the world. Therefore, he committed all to the Holy Spirit, who, in the persons of the apostles, did justice to the Son, by shewing to the whole world, his doctrines, his life, his miracles, and the accomplishment of all the ancient prophecies in his person. All that the apostles preached, they confirmed by most stupendous miracles, gained the hearts of pagans to believe Jesus as their Redeemer, and called down imprecations upon the heads of the incredulous Jews, who had rejected a prophet, visibly sent by God, a Saviour and Redeemer of his people, who, in his person, bore all the characters of the divinity. (Calmet)

[BIBLIOGRAPHY]

Arguet mundum, Greek: elegxei, which St. Cyril expounds by Greek: katakrine. See St. Augustine interpretation on that verse, tract 95. p. 733.