John 16:7-11

But I tell you the truth: it is to your advantage that I am leaving; for if I do not leave, the Helper will not come to you; but if I go, I will send Him to you.

And He, when He comes, will convict the world regarding sin, and righteousness, and judgment:

regarding sin, because they do not believe in Me;

and regarding righteousness, because I am going to the Father and you no longer are going to see Me;

and regarding judgment, because the ruler of this world has been judged.