The Paraclete

Jesus promised to send the Holy Spirit from the Father to whom he would soon return. Jesus described the Holy Spirit as ὁ παράκλητος, the Paraclete, which is usually translated into the Advocate, the Counsellor, the Helper. It is the Spirit of Truth (John 15:26). Again, the terms the Paraclete and the Spirit of Truth are found earlier in John 14:16-17. Though an author is free to concentrate the discussion of a topic within one region of his book, he is, as well, free to scatter the discussion throughout the whole book! Yet, my feeling is still the same. John 15-17 seems to me to be an insertion at a latter day.
After Jesus' ascension, his mission was taken over by the Holy Spirit. Only twice, at the conversion of Saul (Acts 9) and a vision in Corinth (Acts 18), did Jesus appear in the New Testament outside the Gospels and the Revelation. The Holy Spirit was an altered ego of Jesus. At first, it appears as a pure power, a great sound, a strong wind and tongues of fire. Gradually it takes up a personality, being lied to (Acts 5) and speaking to the congregation (Acts 13). It evolved from pure power to a person. Put it in another way, the believers' experience evolved. At first, they experience the Holy Spirit as a potent power. Gradually, they were able to relate to it as a person. In the Acts of the Apostles, the gift of tongues is an unmistakable sign of the presence of the Holy Spirit. Nowadays though, the working of the Holy Spirit is not so conspicuous. There are still occasions of the gift of tongues, but not frequent. Probably there are far too many believers and the experience of the Holy Spirit is being thinned out.
They will put you out of the synagogues; indeed, the hour is coming when whoever kills you will think he is offering service to God (John 16:2).
Scholars nowadays tend to read this verse, like other prophecy statements in the books of Prophets such as Daniel, as a historical statement put into the mouth of Jesus. At the moment of writing, the believers were experiencing expulsion from the synagogues and persecutions. This probably took place around 100 A.D. Of course, Jesus can predict the future. And at this moment of persecution, the dreadful situation would bring to mind what Jesus had predicted during the Last Supper (John 16:4a). So, we have no way to decide whether it is a prophecy or a historical statement. Unless we have access to more internal or external evidence, we had better stick to a less complicated argument. Jesus did make this prediction above.

Come, Holy Spirit. You are the Spirit of Truth. Enlighten us with Your truth so that we may understand the teachings of the Lord properly and correctly. Melt our hearts of stone so that we may love God and our neighbours with passion. Give us the ear of a disciple so that we may listen carefully Your message. Give us the tongue of an evangelist so that we may proclaim Your good news to all. Dwell in us that we may fondly call out Abba. Amen.