To keep this unity must mean to maintain it visibly. If the unity of the Spirit is real, it must be transparently evident, and believers have a responsibility before God to make sure that this is so. To live in a manner which mars the unity of the Spirit is to do despite the gracious reconciling work of Christ. It is tantamount to saying that his sacrificial death by which relationships with God and others have been restored, along with the resulting freedom of access to the Father, are of no real consequence to us! (Peter O’Brien, The Letter to the Ephesians)