But very truly I tell you, it is for your good that I am going away. Unless I go away, the Advocate will not come to you; but if I go, I will send Him to you. 

When He comes, He will prove the world to be in the wrong about sin and righteousness and judgment: about sin, because people do not believe in me; about righteousness, because I am going to the Father, where you can see me no longer; and about judgment, because the prince of this world now stands condemned. John 16:7-11

Very truly I tell you, my Father will give you whatever you ask in my name. Ask and you will receive, and your joy will be complete. John 16:23b,24b