Note too that in 1 Timothy 3:15, St. Paul states that the Church is "THE pillar and ground of the truth." Since the Church alone is mentioned as the pillar of truth, then It alone has the right to discern the truth and interpret Scripture. For if individuals could correctly interpret Scripture, then all interpretations would be exactly the same. There can only be one Spiritual Truth for the plural of the word "truth" never appears in Scripture.
Matthew 18:16 plainly shows that the Church is the court of last instance in disputes. If local churches taught different doctrines, Matthew 18:16 would not be possible.
“if he will not hear the church, let him be to thee as the heathen and publican”.
You seem to overlook Romans ch 8.. the church is a spiritual entity.. for “You MUST be born again”- Jesus.. and then be called “OUT OF” the sheep pens( John ch10).. (EKlesia- i.e. church)..