I find it interesting that most quote Paul's writings over what Jesus said about the Holy Spirit in John's Gospel.
I think I saw Person quote John 1:29
I think Verse 33 is the foundational verse concerning the Baptism in the Holy Spirit Because Jesus is the one who Baptizes the believer in the Holy Spirit.
33 I did not know Him, but He who sent me to baptize with water said to me, ‘Upon whom you see the Spirit descending, and remaining on Him, this is He who baptizes with the Holy Spirit.’
Now Jesus taught on what the Holy S[irit will do for the Believer starting in chapter 14 of John's Gospel.
“Let not your heart be troubled; you believe in God, believe also in Me. 2 In My Father’s house are many mansions; if it were not so, I would have told you. I go to prepare a place for you. 3 And if I go and prepare a place for you, I will come again and receive you to Myself; that where I am, there you may be also.
16 And I will pray the Father, and He will give you another Helper,(like the same kind) that He may abide with you forever— 17 the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you.
18 I will not leave you orphans; I will come to you.
1. give you another Helper
2. He will be with you forever
3. The world cannot receive him
4. You Know HIM
5. He dwells WITH you and WILL be IN YOU In you and come upon you
The Holy Spirit comes in you to receive the Spirit of Truth for salvation, then you receive the empowerment of the Holy Spirit when HE comes upon you to be a witness, as Jesus said in Acts 1:8
and
John chapter 15:26, Jesus says:
26 “But when the Helper comes, whom I shall send to you from the Father, the Spirit of truth who proceeds from the Father, He will testify of Me. 27, And you also will bear witness, because you have been with Me from the beginning.
Then in chapter 16:
5 “But now I go away to Him who sent Me, and none of you asks Me, ‘Where are You going?’ 6 But because I have said these things to you, sorrow has filled your heart. 7 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 depart, I will send Him to you.
8 And when He has come, He will convict the world of sin, and of righteousness, and of judgment: 9 of sin, because they do not believe in Me; 10 of righteousness, because I go to My Father and you see Me no more; 11 of judgment, because the ruler of this world is judged.
12 “I still have many things to say to you, but you cannot bear them now. 13 However, when He, the Spirit of truth, has come, He will guide you into all truth; for He will not speak on His own authority, but whatever He hears He will speak; and He will tell you things to come. 14 He will glorify Me, for He will take of what is Mine and declare it to you. 15 All things that the Father has are Mine. Therefore I said that He will take of Mine and declare it to you.
The Holy Spirit comes into you. Once you are saved and believe in the Lord Jesus, The Holy Spirit brings Jesus to the unbeliever so they can Believe. Then He leads them and guides them in to all Truth. The Holy Spirit comes into you and then comes along side as a HELPER, IN you and with you along side.