Colossians 1:26 in the King James Version
Even the mystery which hath been hid from ages and from generations, but now is made manifest to his saints:
Context
25 of which I was made a servant according to the stewardship of God which was given me toward you to fulfill the word of God,
26 the mystery which has been hidden for ages and generations. But now it has been revealed to his saints,
27 to whom God was pleased to make known what are the riches of the glory of this mystery among the Gentiles, which is Christ in you, the hope of glory.