The Twofold Purpose of The Mystery - Part 10 (final). This is the final lesson in the series given on November 12, 2006 pertaining to the twofold purpose of The Mystery as identified in Ephesians 3:9, and Colossians 1:25-26. The Mystery is the specific truth given to the Christian today to follow with faith obedience. The Apostle Paul says in Eph. 3:8 that he was given this ministry so he might then give it to all Gentiles the unsearchable riches of Christ.