We would urge you to read the passages in John 15 again and really ponder the message of staying connected to Him and being able to bear much fruit.

Secrets of the Vine is an excellent little book to read that explains this passage beautifully.

Those branches that bear no fruit can be compared with two parables:
1. the man who came to the wedding not wearing wedding clothes
2. the foolish virgins
The branches that bear no fruit are imposters, pretending to be believers.  Jesus says these branches will be cut off from the vine and thrown into the fire (hell) and burned.

Jesus tells His disciples that they will be persecuted and even killed.  He warns them that a time will come when Believers will be killed by those who think they are doing a service to God.  This is exactly what Paul was doing when he was persecuting followers of the Way.  He thought he was doing a service to God.

John 16:11
and in regard to judgment, because the prince of this world now stands condemned.

Satan may be prince of this world now, but he stands condemned and will get his just punishment at the end of the Millennium when he, along with the evil angels will be thrown into the lake of fire, prepared specifically for them.
(Matthew 25:41)

We would urge you also to read John Chapter 16 again.

John 16:23
In that day you will no longer ask me anything. I tell you the truth, my Father will give you whatever you ask in my name.

If you read this in full context, it becomes clear what Jesus is talking about in regards to what we are to ask for. (See James 1:5)

James 1:5
But if any of you lacks wisdom, let him ask of God, who gives to all liberally and with no reproach, and it shall be given to him.

When Jesus speaks to the disciples about sending the Holy Spirit, they didn't have a handle on exactly what that meant. They understood about the Holy Spirit "coming upon" someone temporarily but they really didn't understand about the Holy Spirit coming to dwell within. They didn't quite get the personal relationship that they could have with God, the Father and God, the Holy Spirit.

Jesus prays for Himself. He prays for the disciples. And lastly this…

John 17:20
"My prayer is not for them alone. I pray also for those who will believe in me through their message,

That’s us!!! Jesus is praying for US! In His last hours on earth, He was praying for US! What an awesome and humbling thought!