“Even the mystery which hath been hid from ages and from generations, but now is made manifest to his saints:”
King James Version (KJV)
1:26 The mystery - Namely, Christ both justifying and sanctifying gentiles, as well as Jews. Which hath been comparatively hid from former ages and past generations of men.
Col 1:26 Even the mystery . . . is made manifest to his saints. The mystery of the gospel, of salvation through Christ, hidden from past ages, but now revealed to the saints. A mystery, as Paul uses the term, is a thing hidden in the past, but now made known.