John 15.26-27 cont.
26 When the Comforter comes, whom I will send to you from the Father, the Spirit of Truth, who comes from the Father, He will bear witness about Me.
27 and you will also testify, because from the beginning you have been with Me.
2 Jesus is to send the Holy Spirit.
In his first sermon Peter confirmed that Jesus was the One sending the Holy Spirit:
Now He sits on the throne of highest honour in heaven, at God’s right hand. And the Father, as He had promised, gave Him the Holy Spirit to pour out upon us, just as you see and hear today – Acts 2.33 (NLT). The One sitting on the throne is Jesus, and it is Jesus who sends to us the Holy Spirit.
Luke records for us this promise:
And, see, I send upon you the promise of My Father, but you wait (sit) in the city until you are (should be) clothed with power from on high – Luke 24.49.
Jesus sends the Holy Spirit to make an impact on all who receive Him. This is the impact that He should make on you and me.
We must do as Jesus said, and it is to wait in order to receive.
3 The Holy Spirit comes from the Father.
This is prophesied in the Old Testament:
 “Then after I have poured out My rains again, I will pour out My Spirit upon all people. Your sons and daughters will prophesy. Your old men will dream dreams. Your young men will see visions.  In those days, I will pour out My Spirit even on servants, men and women alike” – Joel 2.28-29 (NLT).
Once again, in his first sermon Peter quoted this.
Having ascended into Heaven, Jesus received the Holy Spirit from His Father, and then poured Him out onto the waiting disciples.
Jesus continues to keep His promise to pour out, baptize us, with the Holy Spirit, whom He receives from the Father.
4 He is the Spirit of Truth.
Truth is very precious. Our legal system and courts are based on the foundation of truth. Those in court are called upon to solemnly tell the truth. However, as we know, the truth can be in short supply.
However, the Holy Spirit can only tell us the truth. We shall return to this later in our devotionals.
Since Jesus is The Truth, and the Holy Spirit, Father and Jesus are One, then the Holy Spirit must be the Spirit of Truth.
Let us rejoice that the Holy Spirit within us is Truth.