It doesn't make sense to keep teaching or guiding the same people after teaching them about "they don't need anyone to teach them" and after they received the Holy Spirit and is able to receive guidance from it.
Its always the holy spirit. Whenever an overseer teaches or corrects someone its the holy spirit not the overseer. Whenever someone teaches a false teaching it is because they have rejected the truth which is Gods spirit.
When its mentioned that the church is to be unified in mind and spirit this is the holy spirit that unites in the teachings that all recognise the same truth. Its when this truth and spirit are challenged by false spirits that we need authority in the church to protect against this.
Any leadership role is very temporary. When someone receives the Holy Spirit, the Holy Spirit takes over that role as the sole spiritual leader over their lives.
Yes this is true, they can know Christs truth. But this doesn't mean everyone is living in that truth in the church. These are the wolves who look like sheep and promote false ideas and teachings that seem similar as they even fool the elect. If they can fool the elect then despite the holy spirit some reject Christs truth.
Or it can be just plain lack of knowledge and experience as a Christian. The bible mentions not causing those new to the faith to stumble. Maybe they have not fully read the bible. Paul mentions an overseer must not be a new Christian but knowledgable on the bible and be able to teach and correct others.
So some sort of order and authority within the church to have the ability to correct and reprove others who may either be less knowledgable on the scriptures, or are rejecting this and promoting a different doctrine.
The problem is not everyone will agree and then how do we tell who is teaching the truth. Look at all the different denominations who are teaching different things. Who holds the truth as they all claim they are standing on Gods spirit and Christs truth.
There has to be an authority above the lay who can sort this out. If we look at the bible we see many times the elders and the chief priests gathered to make important decisions about the teachings ie (circumcision). There would have been other times like when the church denounces heretics. This has been the case over history and still today as there are still heretics.
The problem is today there are many different claimed authorities in different denominations. It should be united. So even the church as a whole needs some sort of truth to tell which denominations are in Christs spirit and truth or not but are actually teaching a falsehood.
What's the point of serving as a spiritual authority/guide over another Christian who has the anointing of the Holy Spirit when the Holy Spirit alone is already more than sufficient (1 John 2:26-27, John 16:13)?
So what happens when two people both claiming the truth of the holy spirit disagree. How do you tell. Christ said He was the truth. Obviously this is determined by the scriptures and the fruits of the spirit. This is where the overseer comes in on behalf of the church.
I mean you can as a Christian spread the good news and no one would know if you have taught something wrong when outside the church. But inside the church when people are gathered the truth needs to be clearly decerned. The bible talks about decening the truth.
I think just being friends is more appropriate as in John 15:15
Yes all that has been said above is nothing without love, without being done in love for the other. But unfortunately people can deny the truth or even sin. If you notice Jesus says in verse 10
"If you keep my commands, you will remain in my love, just as I have kept my Father’s commands and remain in his love.
So some can not keep the commands and therefore be blind to the truth. But those who do they don't need to be taught the truth. They will have a unified mind and spirit with the overseer or a friend. Otherwise as the bible says sometimes we need to reprove or even rebuke a friend out of love.
These things really have to be taken into context. They're both right but only exists in their own time. Get people started. That's the only leadership role we can have over others. Beyond that, we can't usurp the role of the Holy Spirit.
Unfortunately within a church with a large body of people not everyone is unified and people sin.
But you are right everything is guided by the holy spirit. When speaking about authority in the church this is not any humans authority. It is the holy spirit who is the authority and its a case of being aligned with the biblical truths or not that helps decern the truth as to whether the person is of the holy spirit or some other spirit posing as the holy spirit.
Not all Christians are mature enough to decern the difference. Especially in todays modern society where secular ideas can look very similar and appear good and right and yet be in contradiction to the bible. I think Paul even refers to these alternative doctrines, and myths so there are spirits who decieve. Its a spiritual battle that is not always obvious.