Ephesians 3:9 –11
New International Version (NIV1984)
9 and to make plain to everyone the administration of this mystery, which for ages past was kept hidden in God, who created all things. 10 His intent was that now, through the church, the manifold wisdom of God should be made known to the rulers and authorities in the heavenly realms, 11 according to his eternal purpose which he accomplished in Christ Jesus our Lord.
From BibleGateway.com: http://www.biblegateway.com/passage/?search=Ephesians 3:9 –11&version=NIV