This chapter is difficult to digest. Better to take it one verse at a time:
 “All this I have told you so that you will not go astray.”
I love the fact the Jesus knows them (and us) so well! My version says, “fall away.” Both indicate a wandering off-course, although one may be more extreme than the other.
 “They will put you out of the synagogue; in fact, a time is coming when anyone who kills you will think he is offering a service to God.”
I’m thinking Saul/Paul. He began the “eradication ” soon after Pentecost.
 “They will do such things because they have not known the Father or me.”
But even then, they can be saved. Paul was!
 “I have told you this, so that when the time comes you will remember that I warned you. I did not tell you this at first because I was with you.
 But now I am going to him who sent me,”
Jesus knew what to mention and when. Prudence IS one of the seven pillars of wisdom (Prov. 9:1 using 1:2-5).
“yet none of you asks me, ‘Where are you going?' Because I have said these things, you are filled with grief.”
I think Jesus was acknowledging their grief. It was a natural emotion to His news. Neither could they grasp just what was taking place.
”But I tell you the truth: It is for your good that I am going away. Unless I go away, the Counselor will not come to you; but if I go, I will send him to you.”
This verse is the entire reason for Jesus’ visit to Earth! He wanted to change the way our relationship with Him works.
 “When he comes, he will convict the world of guilt in regard to sin and righteousness and judgment:”
It is the job of the Holy Spirit to convict–not ours! Look at how He convicts:
 in regard to sin, because men do not believe in me;
 in regard to righteousness, because I am going to the Father, where you can see me no longer;
(He truly IS GOD!)
 and in regard to judgment, because the prince of this world now stands condemned.
[One of a series of judgments of Satan. The first was being cast down from Heaven (much is described in Rev. 12), now this one, then the bottomless pit (20:1-3), and then the lake of fire (Rev. 20:10)].
 “I have much more to say to you, more than you can now bear.
 But when he, the Spirit of truth, comes, he will guide you into all truth. He will not speak on his own; he will speak only what he hears, and he will tell you what is yet to come.
I bolded the best part. Of all that we read today, let us grab onto this: God is NOT distant, nor is He vague. He loves us with an everlasting love and wants intimate fellowship with us ALL THE TIME! Hence, the indwelling of the Holy Spirit.
 He will bring glory to me by taking from what is mine and making it known to you.
 All that belongs to the Father is mine. That is why I said the Spirit will take from what is mine and make it known to you.
These two verses explain the Trinity and how that relationship works: the Father gives to the Son who gives to the Spirit who gives to us. The Spirit is not less than God, but He is the Motion of God and is a separate entity, which is how God can live in us. We could spend an entire week just on what it means to have the Motion (Power, Dynamo) of God inside us!
Aren’t you glad God had all of this figured out?!!!