The Holy Spirit is the Teacher by whom all things of GOD and His knowledge, wisdom, and understanding are given. The Holy Spirit is the one who aids the church leadership in the Five-Fold Ministry (Apostles, Pastors, Teachers, etc) in understanding the Scriptures, and helps them to teach the congregation about the Word of GOD.
“But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.“
“But the Comforter (Counselor, Helper, Intercessor, Advocate, Strengthener, Standby), the Holy Spirit, Whom the Father will send in My name [in My place, to represent Me and act on My behalf], He will teach you all things. And He will cause you to recall (will remind you of, bring to your remembrance) everything I have told you.“
—John 14:2 (KJV/AMPC)
“For as many as are led by the Spirit of God, they are the sons of God.“
“For all who are led by the Spirit of God are sons of God.“
—Romans 8:14 (KJV/AMPC)
“How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report?”
“But how are people to call upon Him Whom they have not believed [in Whom they have no faith, on Whom they have no reliance]? And how are they to believe in Him [adhere to, trust in, and rely upon Him] of Whom they have never heard? And how are they to hear without a preacher? And how can men [be expected to] preach unless they are sent? As it is written, How beautiful are the feet of those who bring glad tidings! [How welcome is the coming of those who preach the good news of His good things!] But they have not all heeded the Gospel; for Isaiah says, Lord, who has believed (had faith in) what he has heard from us?”
—Romans 10:14-16 (KJV/AMPC)
“Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world, nor of the princes of this world, that come to nought: But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory: Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory. But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him. But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God. For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God. Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God. Which things also we speak, not in the words which man’s wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual. But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.”
“Yet when we are among the full-grown (spiritually mature Christians who are ripe in understanding), we do impart a [higher] wisdom (the knowledge of the divine plan previously hidden); but it is indeed not a wisdom of this present age or of this world nor of the leaders and rulers of this age, who are being brought to nothing and are doomed to pass away. But rather what we are setting forth is a wisdom of God once hidden [from the human understanding] and now revealed to us by God—[that wisdom] which God devised and decreed before the ages for our glorification [to lift us into the glory of His presence]. None of the rulers of this age or world perceived and recognized and understood this, for if they had, they would never have crucified the Lord of glory. But, on the contrary, as the Scripture says, What eye has not seen and ear has not heard and has not entered into the heart of man, [all that] God has prepared (made and keeps ready) for those who love Him [who hold Him in affectionate reverence, promptly obeying Him and gratefully recognizing the benefits He has bestowed]. Yet to us God has unveiled and revealed them by and through His Spirit, for the [Holy] Spirit searches diligently, exploring and examining everything, even sounding the profound and bottomless things of God [the divine counsels and things hidden and beyond man’s scrutiny]. For what person perceives (knows and understands) what passes through a man’s thoughts except the man’s own spirit within him? Just so no one discerns (comes to know and comprehend) the thoughts of God except the Spirit of God. Now we have not received the spirit [that belongs to] the world, but the [Holy] Spirit Who is from God, [given to us] that we might realize and comprehend and appreciate the gifts [of divine favor and blessing so freely and lavishly] bestowed on us by God. And we are setting these truths forth in words not taught by human wisdom but taught by the [Holy] Spirit, combining and interpreting spiritual truths with spiritual language [to those who possess the Holy Spirit]. But the natural, nonspiritual man does not accept or welcome or admit into his heart the gifts and teachings and revelations of the Spirit of God, for they are folly (meaningless nonsense) to him; and he is incapable of knowing them [of progressively recognizing, understanding, and becoming better acquainted with them] because they are spiritually discerned and estimated and appreciated.
—1 Corinthians 2:6-14 (KJV/AMPC)