JOHN 16 : 7 - 9

Nevertheless I tell you the truth, it is to your advantage that I go away, for if I do not go away, the Helper will not come to you, but if I depart, I will send Him to you. And when He has come, He will convict the world of sin and of righteousness and of judgment, of sin because they do not believe in Me - John 16 : 7 - 9.