John 15:26–27; 16:4–15
 “But when the Helper comes, whom I will send to you from the Father, the Spirit of truth, who proceeds from the Father, he will bear witness about me.  And you also will bear witness, because you have been with me from the beginning. (ESV)
 But I have said these things to you, that when their hour comes you may remember that I told them to you.
The Work of the Holy Spirit
“I did not say these things to you from the beginning, because I was with you.  But now I am going to him who sent me, and none of you asks me, ‘Where are you going?’  But because I have said these things to you, sorrow has filled your heart.  Nevertheless, I tell you the truth: it is to your advantage that I go away, for if I do not go away, the Helper will not come to you. But if I go, I will send him to you.  And when he comes, he will convict the world concerning sin and righteousness and judgment:  concerning sin, because they do not believe in me;  concerning righteousness, because I go to the Father, and you will see me no longer;  concerning judgment, because the ruler of this world is judged.
 “I still have many things to say to you, but you cannot bear them now.  When the Spirit of truth comes, he will guide you into all the truth, for he will not speak on his own authority, but whatever he hears he will speak, and he will declare to you the things that are to come.  He will glorify me, for he will take what is mine and declare it to you.  All that the Father has is mine; therefore I said that he will take what is mine and declare it to you. (ESV)
The Promise of the Holy Spirit
 In the first book, O Theophilus, I have dealt with all that Jesus began to do and teach,  until the day when he was taken up, after he had given commands through the Holy Spirit to the apostles whom he had chosen.  He presented himself alive to them after his suffering by many proofs, appearing to them during forty days and speaking about the kingdom of God.
 And while staying with them he ordered them not to depart from Jerusalem, but to wait for the promise of the Father, which, he said, “you heard from me;  for John baptized with water, but you will be baptized with the Holy Spirit not many days from now.”
 So when they had come together, they asked him, “Lord, will you at this time restore the kingdom to Israel?”  He said to them, “It is not for you to know times or seasons that the Father has fixed by his own authority.  But you will receive power when the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth.”  And when he had said these things, as they were looking on, he was lifted up, and a cloud took him out of their sight.  And while they were gazing into heaven as he went, behold, two men stood by them in white robes,  and said, “Men of Galilee, why do you stand looking into heaven? This Jesus, who was taken up from you into heaven, will come in the same way as you saw him go into heaven.”
"The Love of God in the Gospel"
The Vine and the branches
I Am the True Vine
 “I am the true vine, and my Father is the vinedresser.  Every branch in me that does not bear fruit he takes away, and every branch that does bear fruit he prunes, that it may bear more fruit.  Already you are clean because of the word that I have spoken to you.  Abide in me, and I in you. As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me.  I am the vine; you are the branches. Whoever abides in me and I in him, he it is that bears much fruit, for apart from me you can do nothing.  If anyone does not abide in me he is thrown away like a branch and withers; and the branches are gathered, thrown into the fire, and burned.  If you abide in me, and my words abide in you, ask whatever you wish, and it will be done for you.  By this my Father is glorified, that you bear much fruit and so prove to be my disciples.