“My goal is that they may be encouraged in heart and united in love, so that they may have the full riches of complete understanding, in order that they may know the mystery of God, namely, Christ, in whom are hidden all the treasures of wisdom and knowledge” (Colossians 2:2-3).
The Greek philosophies that were prominent in the world of these Colossians had two words that were prominent—“mystery” and “treasure.” They taught that the key to unlocking treasure of wisdom were contained in their secret religions and that those treasures were only available to a select, elite group of people.
Paul used those two words to explain to the Colossians (and to us) that what false religions were offering is only available in Christ. In the language of the New Testament “mystery” isn’t something hidden from us but is something that was once hidden but is now revealed. God hasn’t hidden truth from us but has revealed everything that we need to know for us to access salvation. He has revealed that truth in His Son, Jesus.
When we believe in Jesus we have access to all the wisdom and knowledge we need in order to have a relationship with God. The treasure isn’t available through human wisdom, secret societies or false religions. When we have Jesus we have all we need. There is no other source. Jesus is everything to us.