And it shall come to pass in the last days, God declares, that I will pour out of My Spirit upon all mankind, and your sons and your daughters shall prophesy [telling forth the divine counsels] and your young men shall see visions (divinely granted appearances), and your old men shall dream [divinely suggested] dreams - Acts 2:17 AMPC.
He who believes in Me [who cleaves to and trusts in and relies on Me] as the Scripture has said, From his innermost being shall flow [continuously] springs and rivers of living water - John 7:38 AMPC
Having the Holy Spirit —generally refers to the moment a person accepts The Lord Jesus Christ making - "the all of me for all of you, covenant" with Almighty God. Thus, the Holy Spirit becomes a guarantor of Salvation in Christ Jesus.
That [Spirit] is the guarantee of our inheritance [the first fruits, the pledge and foretaste, the down payment on our heritage], in anticipation of its full redemption and our acquiring [complete] possession of it—to the praise of His glory— Ephesians 1:14 AMPC.
Baptism in the Holy Spirit is a more distinct, a more powerful experience where the Holy Spirit fills a believer to the overflowing of power, praise and prophetic revelation, and can be accompanied by visible signs and wonders like healing, visions and speaking in heavenly languages and earthly dialects— called tongues.
There is a corporate tongue and there is a private tongue
There is a formal prophetic utterance during the Corporate Anointing of a type of believer’s meeting often referred to as a “Holy Ghost Meeting” where the Holy Spirit manifests through believers with their respective spiritual gifts & callings; some gifts are referred to as “power gifts”, (gifts of healings or “creative miracles”) which is the creation of something like a body part or a genetic rewrite, that an individual was not born with due to the fall of man and the curse of the law (Deuteronomy 27). Other spiritual gifts are referred to as “utterance gifts” — To teach, preach & exhort others.
Sometimes a Prophetic Word of encouragement, comfort, confirmation, direction or correction is activated as the Spirit wills — The (present-tense) Word of Knowledge is a knowing or revelation of the past or the present, thoughts, words or actions of another - without any natural communication given to the speaker. Another gift that can operate is a (future tense) Word of Wisdom which is a knowing or revelation of what to do about the future of a given situation. A corrective Word is to be done in private NOT to embarrass or create problems for the believer but to admonish the believer in corrective love to avoid judgment or bad consequences.
These holy utterances are NEVER a "new foundational Word" that has not already been given through the Holy Scriptures; nor, should it ever contradict the CANON of Scriptures - this is for our safety.
Unlike the Old Testament where Only three categories of people could have the Holy Spirit - the Prophet, the High Priest, the Judge/King - Every New Covenant believer has the Holy Spirit and can can operate in prophetic utterance. This does NOT mean they are in the office of a New Covenant Prophet which is different from the Old Covenant Prophet’s position and authority.
There are no more foundational Prophets. There is no need for them. The foundation has already been laid perfectly by THE HOLY SPIRIT and The Lord Jesus Christ Himself is the Chief Cornerstone— Isaiah 28:16, Ephesians 2:20, Acts 4:11, 1 Peter 2:4–7, Matthew 21:42, Mark 12:10–11.
Many altered forms of Christianity have been created by false Prophets and false teachers because were ignorant of the Word of God and were deceived by devils. This is where many miscarriages of ministries have been established by counterfeit holy spirits — called demons; fallen entities that rebelled against God Almighty, deceive people into thinking they are hearing from God and they know better than the established Word of God.
Baptism of the Holy Spirit brings a twofold benefit to the believer personally and the Body of Christ Corporately.
Praying in the Spirit is beyond our understanding. It’s been called a heavenly code language that devils cannot understand and it exceeds our own ability to understand but it is praying on God’s level of understanding through the Holy Spirit.
Praying in the Spirit is not just speaking to God but also as God created the universe through speaking, He, the Person of the Holy Spirit speaks through us. It’s how we built ourselves up.
But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost — Jude 20 KJV.
God speaks through us to intercede for others as well as for ourselves.
So too the [Holy] Spirit comes to our aid and bears us up in our weakness; for we do not know what prayer to offer nor how to offer it worthily as we ought, but the Spirit Himself goes to meet our supplication and pleads in our behalf with unspeakable yearnings and groanings too deep for utterance