Paul's letter to the Ephesians is loaded with theology but learning from it was never meant to be just an academic exercise. It is intended to affect our lives. Whereas chapter 1, verses 1-10, deals with the reality of a holy God breaking down the wall of separation and alienation between unbelievers and Himself, verses 11-22 shift to how the Lord breaks down the barriers and walls of division that exist among believers, bringing peace to both relationships.