7 But I am telling you the truth: it is better for you that I go away, because if I do not go, the Helper will not come to you. But if I do go away, then I will send him to you. 8 And when he comes, he will prove to the people of the world that they are wrong about sin and about what is right and about God’s judgment. 9 They are wrong about sin, because they do not believe in me;