G. Campbell Morgan emphasizes the profound message of Ephesians, focusing on the eternal character and temporal conduct of the Church. He explains that the Church is part of God's eternal plan, constructed by His power, and destined for His purpose. Morgan urges believers to walk worthily of their calling, appropriating God's power and engaging in spiritual conflict. He highlights that the Church's influence in the world is directly tied to its other-worldliness, and that true engagement with the world stems from a deep connection to God. Ultimately, the message calls for unity, sanctification, and the use of God's armor in the face of spiritual challenges.