John the Baptist prophesies: "I indeed baptized you with water, but He will baptize you with the Holy Spirit.” Mark 1:8

"...the Holy Spirit descended in bodily form like a dove upon Him, and a voice came from heaven which said, “You are My beloved Son; in You I am well pleased.” Luke 3:22

"Then Jesus, being filled with the Holy Spirit, returned from the Jordan and was led by the Spirit into the wilderness, being tempted for forty days by the devil. And in those days He ate nothing, and afterward, when they had ended, He was hungry." Luke 4:1

"Jesus rejoiced in the Spirit and said, 'I thank You, Father, Lord of heaven and earth, that You have hidden these things from the wise and prudent and revealed them to babes. Even so, Father, for so it seemed good in Your sight." Luke 10:21

Jesus tells His disciples about the Holy Spirit

"Jesus answered, 'Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God. That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. Do not marvel that I said to you, ‘You must be born again.’ The wind blows where it wishes, and you hear the sound of it, but cannot tell where it comes from and where it goes. So is everyone who is born of the Spirit.'” John 3:5-8

"'It is the Spirit who gives life; the flesh [human nature] profits nothing.'" John 6:63

'''...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." John 14:17

"...the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you. Peace I leave with you, My peace I give to you; not as the world gives do I give to you. Let not your heart be troubled, neither let it be afraid." John 14:26-27

"...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. And you also will bear witness." John 15:26-27

 "...when they arrest you and deliver you up, do not worry beforehand, or premeditate what you will speak. But whatever is given you in that hour, speak that; for it is not you who speak, but the Holy Spirit.  Now brother will betray brother to death, and a father his child; and children will rise up against parents and cause them to be put to death. And you will be hated by all for My name’s sake. But he who endures to the end shall be saved."  Mark 13:11-13

“Now when they bring you to the synagogues and magistrates and authorities, do not worry about how or what you should answer, or what you should say. For the Holy Spirit will teach you in that very hour what you ought to say.” Luke 12:11-12

“These things I have spoken to you while being present with you. But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you." John 14:25-26

"Jesus came and spoke to them, saying,  'All authority has been given to Me in heaven and on earth. Go therefore and make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all things that I have commanded you; and lo, I am with you always, even to the end of the age.” Matthew 28:18-20

Note: Believers out of "all nations" or areas will indeed be baptized. But, in spite of some contemporary claims, nations themselves can neither "believe" nor be "baptized"! 

"...He commanded them not to depart from Jerusalem, but to wait for the Promise of the Father, 'which,' He said, 'you have heard from Me;  for John truly baptized with water, but you shall be baptized with the Holy Spirit not many days from now.'  Therefore, when they had come together, they asked Him, saying, 'Lord, will You at this time restore the kingdom to Israel?'

      "And He said to them, 'It is not for you to know times or seasons which the Father has put in His own authority. But you shall receive power when the Holy Spirit has come upon you; and you shall be witnesses to Me in Jerusalem, and in all Judea and Samaria, and to the end of the earth.” Acts 1:4-8
 

Pentecost -- the gift of the Holy Spirit

"When the Day of Pentecost had fully come, they [disciples and other believers] were all with one accord in one place. And suddenly there came a sound from heaven, as of a rushing mighty wind, and it filled the whole house where they were sitting. Then there appeared to them divided tongues, as of fire, and one sat upon each of them. And they were all filled with the Holy Spirit and began to speak with other tongues, as the Spirit gave them utterance....
     "Then they ["the multitudes"] were all amazed and marveled, saying to one another, 'Look, are not all these who speak 'Galileans? 'And how is it that we hear, each in our own 'language in which we were born? Parthians and Medes... visitors from Rome, both Jews and proselytes, Cretans and Arabs—we hear them speaking in our own tongues the wonderful works of God.'” Acts 2:1-13

"Peter said to them, 'Repent, and let every one of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit. For the promise is to you and to your children, and to all who are afar off, as many as the Lord our God will call.'” Acts 2:38-39

"He [Stephen] being full of the Holy Spirit, gazed into heaven and saw the glory of God, and Jesus standing at the right hand of God, and said, “Look! I see the heavens opened and the Son of Man standing at the right hand of God!” Acts 7:54-56

Then the churches throughout all Judea, Galilee, and Samaria had peace and were edified. And walking in the fear of the Lord and in the comfort of the Holy Spirit, they were multiplied." Acts 9:31

"And the disciples were filled with joy and with the Holy Spirit." Acts 13:52

Discernment through the Spirit

"...as it is written: 'Eye has not seen, nor ear heard, nor have entered into the heart of man, the things which God has prepared for those who love Him.' But God has revealed them to us through His Spirit. For the Spirit searches all things, yes, the deep things of God. For what man knows the things of a man except the spirit of the man which is in him? Even so no one knows the things of God except the Spirit of God. Now we have received, not the spirit of the world, but the Spirit who is from God, that we might know the things that have been freely given to us by God. These things we also speak, not in words which man’s wisdom teaches but which the Holy Spirit teaches...." 1 Corinthian 2:9-13

"Jesus answered and said, 'I thank You, Father, Lord of heaven and earth, that You have hidden these things from the wise and prudent and have revealed them to babes." Matthew 11:25

 Prayer and Worship in the Spirit

"...the hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for the Father is seeking such to worship Him. God is Spirit, and those who worship Him must worship in spirit and truth.” John 4:23-24

"For we are the circumcision, who worship God in the Spirit, rejoice in Christ Jesus, and have no confidence in the flesh...." Philippians 3:3-4

"And take the helmet of salvation, and the sword of the Spirit, which is the word of God; praying always with all prayer and supplication in the Spirit...." Ephesians 6:17-18

Fruit of the Spirit

"Walk in the Spirit, and you shall not fulfill the lust of the flesh [human nature]. For the flesh lusts against the Spirit, and the Spirit against the flesh; and these are contrary to one another, so that you do not do the things that you wish.' Now the works of the flesh are evident, which are: adultery, fornication, uncleanness, lewdness, idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, envy.... those who practice such things will not inherit the kingdom of God.
    "But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, goodness, faithfulness, gentleness, self-control. Against such there is no law. And those who are Christ’s have crucified the flesh with its passions and desires. If we live in the Spirit, let us also walk in the Spirit." Galatians 5:16-25

Living and growing by the Spirit

"...you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. Now if anyone does not have the Spirit of Christ, he is not His. And if Christ is in you, the body is dead because of sin, but the Spirit is life because of righteousness. But if the Spirit of him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you." Romans 8:9-11

"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 bears fruit He prunes, that it may bear more fruit. You are already clean because of the word which I have spoken to you. Abide in Me, and I in you. As the branch cannot bear fruit of itself, unless it abides in the vine, neither can you, unless you abide in Me. I am the vine, you are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can do nothing." John 15:1-5

"...Christ also suffered once for sins, the just for the unjust, that He might bring us to God, being put to death in the flesh but made alive by the Spirit..." 1 Peter 3:18

"...if there is any consolation in Christ, if any comfort of love, if any fellowship of the Spirit, if any affection and mercy, fulfill my joy by being like-minded, having the same love, being of one accord, of one mind." Philippians 2:1-2

Driven by the flesh rather than walking by the Spirit

"Having begun in the Spirit, are you now being made perfect by the flesh? Have you suffered so many things in vain—if indeed it was in vain?" Galatians 3:3-4

"For we have spent enough of our past lifetime in doing the will of the Gentiles—when we walked in lewdness, lusts, drunkenness, revelries, drinking parties, and abominable idolatries. In regard to these, they think it strange that you do not run with them in the same flood of dissipation, speaking evil of you. They will give an account to Him who is ready to judge the living and the dead. For this reason the gospel was preached also to those who are dead, that they might be judged according to men in the flesh, but live according to God in the spirit." 1 Peter 4:3-6

"And such were some of you. But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God." 1 Corinthians 6:11

Led by the Holy Spirit

"So, being sent out by the Holy Spirit, they went down to Seleucia, and from there they sailed to Cyprus." Acts 13:49

"Now when they had gone through Phrygia and the region of Galatia, they were forbidden by the Holy Spirit to preach the word in Asia." Acts 16:6

“Paul purposed in the Spirit, when he had passed through Macedonia and Achaia, to go to Jerusalem, saying, 'After I have been there, I must also see Rome.'” Acts 19:21

Paul wrote: "I go bound in the spirit to Jerusalem, not knowing the things that will happen to me there, except that the Holy Spirit testifies in every city, saying that chains and tribulations await me. But none of these things move me; nor do I count my life dear to myself, so that I may finish my race with joy, and the ministry which I received from the Lord Jesus, to testify to the gospel of the grace of God." Acts 20:22-24

"I was in the Spirit on the Lord’s Day, and I heard behind me a loud voice, as of a trumpet, saying, ' am the Alpha and the Omega, the First and the Last.'” Revelation 1:10-11

Old Testament prophecy of the coming work of the Spirit

“The Spirit of the Lord God is upon Me, because the Lord has anointed Me
To preach good tidings to the poor;
He has sent Me to heal the brokenhearted, to proclaim liberty to the captives,
And the opening of the prison to those who are bound;
To proclaim the acceptable year of the Lord, and the day of vengeance of our God;
To comfort all who mourn, to console those who mourn in Zion,
To give them beauty for ashes, the oil of joy for mourning,
The garment of praise for the spirit of heaviness;
That they may be called trees of righteousness,
The planting of the Lord, that He may be glorified.” Isaiah 61:1-3