Ephesians 3:8-10 (Amplified Bible)
8To me, though I am the very least of all the saints (God's consecrated people), this grace (favor, privilege) was granted and graciously entrusted: to proclaim to the Gentiles the unending (boundless, fathomless, incalculable, and exhaustless) riches of Christ [wealth which no human being could have searched out],
9Also to enlighten all men and make plain to them what is the plan [regarding the Gentiles and providing for the salvation of all men] of the mystery kept hidden through the ages and concealed until now in [the mind of] God Who created all things by Christ Jesus.
10[The purpose is] that through the church the [a]complicated, many-sided wisdom of God in all its infinite variety and innumerable aspects might now be made known to the angelic rulers and authorities (principalities and powers) in the heavenly sphere.
The understanding of God's secret plan is only obtained through enlightment. How does this enlightment occur? Well, Jesus came to earth and dwelt among us two thousand years ago. When He returned to heaven, He promised to send the Holy Spirit - the Spirit of Truth - who would be with us until the end of the age. The Holy Spirit was sent to earth by Jesus (Acts 2:32-34) and where does the Spirit of God live? Not in buildings - but inside of those who believe in and have accepted Jesus as Lord in their lives (1 Corinthians 3:16).
It is this Spirit that gives us the wisdom and revelation to know God and to understand what He has done for us (Ephesians 1:17-19).
