Why did God reveal the mystery of Christ?
God revealed this secret of the mystery so that, through the church, the manifold wisdom of God might now be made known to the principalities and powers in the heavenly places. The church is the assembly of called-out believers, not only preachers or seminarians, and includes the common ordinary person in the pew.
Les explains that God had kept these things secret until they were revealed to this Apostle. In verse 10 he asks why God has now revealed this secret of the mystery. The purpose is that now unto the principalities and powers in the heavenlies might be known by the church—the Ecclesia, an assembly of called-out believers—the manifold wisdom of God. Les stresses that the church is not just the seminarians or preachers; it is everybody, the common ordinary person in the pew, and they are supposed to know the manifold wisdom of God. He illustrates this with Tyndale, who wanted to get the Word of God into the hands of every plow boy in England, meaning no one was too uneducated to have the Word. God intends every single believer to study the Scriptures and understand them. Les adds that nothing thrills him more than someone saying they disagree with him or he makes them mad, but they have determined to start studying their Bible.
To the intent that now unto the principalities and powers in heavenly places might be known by the church the manifold wisdom of God,