Jn 16:5-11
[Jesus said to his disciples,] 5“Now I am going to the one who sent me, and not one of you asks me, ‘Where are you going?’ 6But because I told you this, grief has filled your hearts. 7But I tell you the truth, it is better for you that I go. For if I do not go, the Advocate will not come to you. But if I go, I will send him to you. 8And when he comes he will convict the world in regard to sin and righteousness and condemnation: 9sin, because they do not believe in me; 10righteousness, because I am going to the Father and you will no longer see me; 11condemnation, because the ruler of this world has been condemned.”
HE WILL CONVICT THE WORLD: In his farewell discourse, Jesus looks ahead and speaks of his departure and the coming of the Advocate/Paraclete. Because the Advocate will bring them further understanding about Jesus and will always be with them as their defender, then it is to their advantage that Jesus is going away.
In the trial motif of the Fourth Gospel, the Advocate becomes a prosecuting attorney. His activity will affect three participants in the trial. He will convict the world of sin because it refused to believe in Jesus (Sin with capital “S” is ultimately unbelief in the Fourth Gospel). Then Jesus, who will be condemned to death, will be posthumously vindicated along with the righteousness of his cause. Lastly, Satan, the ruler of this world, who has seemingly triumphed, will be shown only to have been bringing on a downfall because he had been prejudged by God from all eternity.