John 16:8

And when he is come, he will reprove the world of sin, and of righteousness, and of judgment:

Ver. 8. And when he is come, &c.] This text had been easy, had not commentators made it so knotty.

He will reprove] Or undeceive the world, by refuting those odd conceits and erroneous opinions, that men had before drunk in, and were possessed of, ελεγξει. Ita ut nihil habeat, quod praetexat. He shall clearly convince them of the hatefulness of sin, of the necessity of getting righteousness, both imputed and imparted; both that of justification, inherent in Christ, imputed to us, and that of sanctification also, imparted by Christ, inherent in us; this latter is here called judgment, as it is likewise Matthew 12:20. Till he bring forth (εκβαλη) judgment to victory; that is, weak grace (called before a broken reed, smoking wick) to perfect conquest over corruption. Cum vi quadam, frustra obsistente Satana. Compare with this text that of the apostle,1 Corinthians 6:11; Such were some of you (scilicet, mundus immundus), but ye are (in general) washed from your sins, of the hatefulness whereof ye are now clearly convinced; and (in particular) ye are sanctified by the Spirit of our God, and ye are justified in the name, that is, by the merit, of the Lord Jesus the righteous, who is the propitiation for our sins.