2 Timothy 3:16 English Standard Version (ESV) All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness,
If I were to say that teachers, pastors, evangelists, theologians, and shepherds have absolutely nothing to do with training in righteousness, I would expect to receive an augment from everyone who serves in those capacities. I would also expect their students to say, “I don’t understand.”
If I were to say the abiding Spirit of truth in you breathed life into the scriptures then some would agree and say they understand. There would still be a class of students that are withheld from understanding. That does not mean they do not have the Spirit of truth in them to help them. It only means they have not completed the first steps in understanding Truth.
Note closely that I capitalized Truth. Truth is a person not an idea. Seeking understanding is a mental operation, seeking Truth is a heart condition.
Deuteronomy 4:29 English Standard Version (ESV) But from there you will seek the Lord your God and you will find him, if you search after him with all your heart and with all your soul.
From the very beginnings of instruction it was made somewhat clear that there is a distinct difference between seeking with the heart and seeking with the soul. The soul is the mind, will and emotions of an individual, all of which are flesh. The heart, the one we now have, is created and under the control of God by the presence of the Holy Spirit. That is where Truth is found.
1 Corinthians 8:2 English Standard Version (ESV) If anyone imagines that he knows something, he does not yet know as he ought to know.
The imagination is a function of an undisciplined mind, one who seeks understanding by reason rather than revelation.
John 16:12-13 English Standard Version
12 “I still have many things to say to you, but you cannot bear them now. 13 When the Spirit of truth comes, he will guide you into all the truth, for he will not speak on his own authority, but whatever he hears he will speak, and he will declare to you the things that are to come.