A Mystery

Everyone loves a mystery! However, the Bible speaks
of mystery as a secret, something unknown in earlier
ages. God the Father had a divine secret that He carried
throughout the Old Covenant. He worked through the
years, never fully disclosing His heart until the fullness
of time when the Father sent forth the Son of His love;
then by the Holy Spirit, made known the fullness of His
love toward the gentiles. The Apostle Paul became a
"minister...to make the word of God fully known,
 the mystery hidden for ages and for generations
but now revealed to his saints."

It is in the first chapter of Colossians that this divine
secret is disclosed as the matchless, incomparable
unveiling:

"That in all things he might have pre-eminence."

Its beginning is within the heart of every believer.
The mystery is: (trumpets please)

"Christ in you, the hope of glory."