Why does Jesus call the Spirit 'another Helper'?

¹⁵If you love me, keep my commandments.

¹⁶I will pray to the Father, and he will give you another Counselor, that he may be with you forever,—

¹⁷the Spirit of truth, whom the world can’t receive; for it doesn’t see him, neither knows him. You know him, for he lives with you, and will be in you.

¹⁸I will not leave you orphans. I will come to you.

¹⁹Yet a little while, and the world will see me no more; but you will see me. Because I live, you will live also.

²⁰In that day you will know that I am in my Father, and you in me, and I in you.

²¹One who has my commandments, and keeps them, that person is one who loves me. One who loves me will be loved by my Father, and I will love him, and will reveal myself to him.”

²²Judas (not Iscariot) said to him, “Lord, what has happened that you are about to reveal yourself to us, and not to the world?”

²³Jesus answered him, “If a man loves me, he will keep my word. My Father will love him, and we will come to him, and make our home with him.

²⁴He who doesn’t love me doesn’t keep my words. The word which you hear isn’t mine, but the Father’s who sent me.

²⁵I have said these things to you, while still living with you.

²⁶But the Counselor, the Holy Spirit, whom the Father will send in my name, he will teach you all things, and will remind you of all that I said to you.

²⁷Peace I leave with you. My peace I give to you; not as the world gives, give I to you. Don’t let your heart be troubled, neither let it be fearful.

²⁸You heard how I told you, ‘I go away, and I come to you.’ If you loved me, you would have rejoiced, because I said ‘I am going to my Father;’ for the Father is greater than I.

²⁹Now I have told you before it happens so that, when it happens, you may believe.

³⁰I will no more speak much with you, for the prince of the world comes, and he has nothing in me.

³¹But that the world may know that I love the Father, and as the Father commanded me, even so I do. Arise, let us go from here.

¹⁸If the world hates you, you know that it has hated me before it hated you.

¹⁹If you were of the world, the world would love its own. But because you are not of the world, since I chose you out of the world, therefore the world hates you.

²⁰Remember the word that I said to you: ‘A servant is not greater than his lord.’If they persecuted me, they will also persecute you. If they kept my word, they will keep yours also.

²¹But all these things will they do to you for my name’s sake, because they don’t know him who sent me.

²²If I had not come and spoken to them, they would not have had sin; but now they have no excuse for their sin.

²³He who hates me, hates my Father also.

²⁴If I hadn’t done among them the works which no one else did, they wouldn’t have had sin. But now have they seen and also hated both me and my Father.

²⁵But this happened so that the word may be fulfilled which was written in their law, ‘They hated me without a cause.’

²⁶“When the Counselorhas come, whom I will send to you from the Father, the Spirit of truth, who proceeds from the Father, he will testify about me.

²⁷You will also testify, because you have been with me from the beginning.

¹The first book I wrote, Theophilus, concerned all that Jesus began both to do and to teach,

²until the day in which he was received up, after he had given commandment through the Holy Spirit to the apostles whom he had chosen.

³To these he also showed himself alive after he suffered, by many proofs, appearing to them over a period of forty days, and speaking about God’s Kingdom.

⁴Being assembled together with them, he commanded them, “Don’t depart from Jerusalem, but wait for the promise of the Father, which you heard from me.

⁵For John indeed baptized in water, but you will be baptized in the Holy Spirit not many days from now.”

⁶Therefore when they had come together, they asked him, “Lord, are you now restoring the kingdom to Israel?”

⁷He said to them, “It isn’t for you to know times or seasons which the Father has set within his own authority.

⁸But you will receive power when the Holy Spirit has come upon you. You will be witnesses to me in Jerusalem, in all Judea and Samaria, and to the uttermost parts of the earth.”

⁹When he had said these things, as they were looking, he was taken up, and a cloud received him out of their sight.

¹⁰While they were looking steadfastly into the sky as he went, behold, two men stood by them in white clothing,

¹¹who also said, “You men of Galilee, why do you stand looking into the sky? This Jesus, who was received up from you into the sky will come back in the same way as you saw him going into the sky.”

¹Now when the day of Pentecost had come, they were all with one accord in one place.

²Suddenly there came from the sky a sound like the rushing of a mighty wind, and it filled all the house where they were sitting.

³Tongues like fire appeared and were distributed to them, and one sat on each of them.

⁴They were all filled with the Holy Spirit, and began to speak with other languages, as the Spirit gave them the ability to speak.

⁵Now there were dwelling in Jerusalem Jews, devout men, from every nation under the sky.

⁶When this sound was heard, the multitude came together, and were bewildered, because everyone heard them speaking in his own language.

⁷They were all amazed and marveled, saying to one another, “Behold, aren’t all these who speak Galileans?

⁸How do we hear, everyone in our own native language?

⁹Parthians, Medes, Elamites, and people from Mesopotamia, Judea, Cappadocia, Pontus, Asia,

¹⁰Phrygia, Pamphylia, Egypt, the parts of Libya around Cyrene, visitors from Rome, both Jews and proselytes,

¹¹Cretans and Arabians: we hear them speaking in our languages the mighty works of God!”

¹²They were all amazed, and were perplexed, saying one to another, “What does this mean?”

¹³Others, mocking, said, “They are filled with new wine.”

¹⁴But Peter, standing up with the eleven, lifted up his voice, and spoke out to them, “You men of Judea, and all you who dwell at Jerusalem, let this be known to you, and listen to my words.

¹⁵For these aren’t drunken, as you suppose, seeing it is only the third hour of the day.

¹⁶But this is what has been spoken through the prophet Joel:

¹⁷‘It will be in the last days, says God, that I will pour out my Spirit on all flesh. Your sons and your daughters will prophesy. Your young men will see visions. Your old men will dream dreams.

¹⁸Yes, and on my servants and on my handmaidens in those days, I will pour out my Spirit, and they will prophesy.

¹⁹I will show wonders in the sky above, and signs on the earth beneath; blood, and fire, and billows of smoke.

²⁰The sun will be turned into darkness, and the moon into blood, before the great and glorious day of the Lord comes.

²¹It will be, that whoever will call on the name of the Lord will be saved.’