John 16:7-11
7  Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you.
8  And when he is come, he will reprove the world of sin, and of righteousness, and of judgment:
9  Of sin, because they believe not on me;
10  Of righteousness, because I go to my Father, and ye see me no more;
11  Of judgment, because the prince of this world is judged.
John 16:7-11