Acts 20:27 (KJV) For I have not shunned to declare unto you all the counsel of God.
Paul taught all the counsel of God. That means that there are not any new doctrines that still need to be discovered or developed or finalized. Do you belong to a church that has introduced new teachings over the years? Do you belong to a church that considers declaring new teachings? If so, you are not a member of God’s church; you belong to a false church. One may argue that your church is only making a teaching official. If that is the case, then somewhere along the line your church lost the teaching that Paul taught to the first century churches. That means your church hasn’t always taught all the counsel of God and that your church is just an imitation.